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.

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

Answer:_______________

Swathi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 360 pages on Saturday, how many pages were left unread

Answer:_______________

Chithra read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 550 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 750 pages on Saturday, how many pages were left unread

Answer:_______________

Nandini read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 208 pages on Saturday, how many pages were left unread

Answer:_______________

Parveen read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 930 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 475 pages on Saturday, how many pages were left unread

Answer:_______________

Ponnalagu read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 264 pages on Saturday, how many pages were left unread

Answer:_______________

Swathi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 720 pages on Saturday, how many pages were left unread

Answer:_______________

10)

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 420 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 720 pages on Saturday, how many pages were left unread
Answer: 1008

SOLUTION 1 :

$720

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 = 720

1 unit = 720 ÷ 5
= 144

Step 4 : 7 units = 7 x 144

= 1008

1008 pages were left unread.

Swathi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 360 pages on Saturday, how many pages were left unread

Answer: 315

SOLUTION 1 :

$360

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 = 360

1 unit = 360 ÷ 8

= 45

Step 4 : 7 units = 7 x 45

= 315

315 pages were left unread.

Chithra read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 550 pages on Saturday, how many pages were left unread
Answer: 110

SOLUTION 1 :

$550

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 = 550

1 unit = 550 ÷ 10

= 55

Step 4 : 2 units = 2 x 55

= 110

110 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 750 pages on Saturday, how many pages were left unread
Answer: 1050

SOLUTION 1 :

$750

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 = 750

1 unit = 750 ÷ 5
= 150

Step 4 : 7 units = 7 x 150

= 1050

1050 pages were left unread.

Nandini read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 208 pages on Saturday, how many pages were left unread

Answer: 182

SOLUTION 1 :

$208

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 = 208

1 unit = 208 ÷ 8

= 26

Step 4 : 7 units = 7 x 26

= 182

182 pages were left unread.

Parveen read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 930 pages on Saturday, how many pages were left unread
Answer: 186

SOLUTION 1 :

$930

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 = 930

1 unit = 930 ÷ 10

= 93

Step 4 : 2 units = 2 x 93

= 186

186 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 475 pages on Saturday, how many pages were left unread
Answer: 665

SOLUTION 1 :

$475

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 = 475

1 unit = 475 ÷ 5
= 95

Step 4 : 7 units = 7 x 95

= 665

665 pages were left unread.

Ponnalagu read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 264 pages on Saturday, how many pages were left unread

Answer: 231

SOLUTION 1 :

$264

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 = 264

1 unit = 264 ÷ 8

= 33

Step 4 : 7 units = 7 x 33

= 231

231 pages were left unread.

Swathi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 720 pages on Saturday, how many pages were left unread
Answer: 144

SOLUTION 1 :

$720

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 = 720

1 unit = 720 ÷ 10

= 72

Step 4 : 2 units = 2 x 72

= 144

144 pages were left unread.

10)

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 420 pages on Saturday, how many pages were left unread
Answer: 588

SOLUTION 1 :

$420

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 = 420

1 unit = 420 ÷ 5
= 84

Step 4 : 7 units = 7 x 84

= 588

588 pages were left unread.