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.

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 224 pages on Saturday, how many pages were left unread

Answer:_______________

Indra read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 900 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 225 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 728 pages on Saturday, how many pages were left unread

Answer:_______________

Chellamal read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 620 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 255 pages on Saturday, how many pages were left unread

Answer:_______________

Parveen read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 496 pages on Saturday, how many pages were left unread

Answer:_______________

Ramani read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 730 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 30 pages on Saturday, how many pages were left unread

Answer:_______________

10)

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 704 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 224 pages on Saturday, how many pages were left unread

Answer: 196

SOLUTION 1 :

$224

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 = 224

1 unit = 224 ÷ 8

= 28

Step 4 : 7 units = 7 x 28

= 196

196 pages were left unread.

Indra read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 900 pages on Saturday, how many pages were left unread
Answer: 180

SOLUTION 1 :

$900

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 = 900

1 unit = 900 ÷ 10

= 90

Step 4 : 2 units = 2 x 90

= 180

180 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 225 pages on Saturday, how many pages were left unread
Answer: 315

SOLUTION 1 :

$225

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 = 225

1 unit = 225 ÷ 5
= 45

Step 4 : 7 units = 7 x 45

= 315

315 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 728 pages on Saturday, how many pages were left unread

Answer: 637

SOLUTION 1 :

$728

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 = 728

1 unit = 728 ÷ 8

= 91

Step 4 : 7 units = 7 x 91

= 637

637 pages were left unread.

Chellamal read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 620 pages on Saturday, how many pages were left unread
Answer: 124

SOLUTION 1 :

$620

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 = 620

1 unit = 620 ÷ 10

= 62

Step 4 : 2 units = 2 x 62

= 124

124 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 255 pages on Saturday, how many pages were left unread
Answer: 357

SOLUTION 1 :

$255

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 = 255

1 unit = 255 ÷ 5
= 51

Step 4 : 7 units = 7 x 51

= 357

357 pages were left unread.

Parveen read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 496 pages on Saturday, how many pages were left unread

Answer: 434

SOLUTION 1 :

$496

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 = 496

1 unit = 496 ÷ 8

= 62

Step 4 : 7 units = 7 x 62

= 434

434 pages were left unread.

Ramani read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 730 pages on Saturday, how many pages were left unread
Answer: 146

SOLUTION 1 :

$730

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 = 730

1 unit = 730 ÷ 10

= 73

Step 4 : 2 units = 2 x 73

= 146

146 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 30 pages on Saturday, how many pages were left unread
Answer: 42

SOLUTION 1 :

$30

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 = 30

1 unit = 30 ÷ 5
= 6

Step 4 : 7 units = 7 x 6

= 42

42 pages were left unread.

10)

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 704 pages on Saturday, how many pages were left unread

Answer: 616

SOLUTION 1 :

$704

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 = 704

1 unit = 704 ÷ 8

= 88

Step 4 : 7 units = 7 x 88

= 616

616 pages were left unread.