Sasi Math (Revised for 1024)

Scroll:Fractions >> Multiplication >> ps (379)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

Kumutha read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 165 pages on Saturday, how many pages were left unread

Answer:_______________

Jeevini read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 712 pages on Saturday, how many pages were left unread

Answer:_______________

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 810 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 145 pages on Saturday, how many pages were left unread

Answer:_______________

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 520 pages on Saturday, how many pages were left unread

Answer:_______________

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 460 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 20 pages on Saturday, how many pages were left unread

Answer:_______________

Tamilselvi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 720 pages on Saturday, how many pages were left unread

Answer:_______________

10)

Ponnalagu read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 540 pages on Saturday, how many pages were left unread

Answer:_______________

Kumutha read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread
Answer: 98

SOLUTION 1 :

$490

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 490

1 unit = 490 ÷ 10

= 49

Step 4 : 2 units = 2 x 49

= 98

98 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 165 pages on Saturday, how many pages were left unread
Answer: 231

SOLUTION 1 :

$165

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 165

1 unit = 165 ÷ 5
= 33

Step 4 : 7 units = 7 x 33

= 231

231 pages were left unread.

Jeevini read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 712 pages on Saturday, how many pages were left unread

Answer: 623

SOLUTION 1 :

$712

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 712

1 unit = 712 ÷ 8

= 89

Step 4 : 7 units = 7 x 89

= 623

623 pages were left unread.

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 810 pages on Saturday, how many pages were left unread
Answer: 162

SOLUTION 1 :

$810

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 810

1 unit = 810 ÷ 10

= 81

Step 4 : 2 units = 2 x 81

= 162

162 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 145 pages on Saturday, how many pages were left unread
Answer: 203

SOLUTION 1 :

$145

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 145

1 unit = 145 ÷ 5
= 29

Step 4 : 7 units = 7 x 29

= 203

203 pages were left unread.

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 520 pages on Saturday, how many pages were left unread

Answer: 455

SOLUTION 1 :

$520

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 520

1 unit = 520 ÷ 8

= 65

Step 4 : 7 units = 7 x 65

= 455

455 pages were left unread.

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 460 pages on Saturday, how many pages were left unread
Answer: 92

SOLUTION 1 :

$460

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 460

1 unit = 460 ÷ 10

= 46

Step 4 : 2 units = 2 x 46

= 92

92 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 20 pages on Saturday, how many pages were left unread
Answer: 28

SOLUTION 1 :

$20

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 20

1 unit = 20 ÷ 5
= 4

Step 4 : 7 units = 7 x 4

= 28

28 pages were left unread.

Tamilselvi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 720 pages on Saturday, how many pages were left unread

Answer: 630

SOLUTION 1 :

$720

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 720

1 unit = 720 ÷ 8

= 90

Step 4 : 7 units = 7 x 90

= 630

630 pages were left unread.

10)

Ponnalagu read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 540 pages on Saturday, how many pages were left unread
Answer: 108

SOLUTION 1 :

$540

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 540

1 unit = 540 ÷ 10

= 54

Step 4 : 2 units = 2 x 54

= 108

108 pages were left unread.