Page 86 - ICSE Math 6

(1×5) 3+ 8 5
= 1,224 ÷ = 1,224 ÷ = 1,224 ×
5 5 8
= 765 km
1 1 (2×5) 1+
(b) In 2 hours, the airplane can cover = 765 × 2 km = 765×
5 5 5
11 8,415
= 765× = = 1,683 km
5 5

EXERCISE 5.4

1. Simplify.

1
(a) 5  ÷  2 + 1 1 5   (b) 5 of 4  +  5 + 5   × 14
7  3 7  2 7  7 14  15

3 7 14 1  4 2   3 2 
×2 +
(c) 3 ÷ × ×1 (d)  −   5 
4 8 15 3  5 15   4 3 
 1  16  1 5    3 3 4  1  3 1  2 1   
(e)  4 ×  ÷ 3 −  1   ÷  1 (f) of −  2 ÷ −  ×  −   
 5  21  4 12    5 4 9  3  4 2  3 24   

3  5 1  3 5 3 1
2. Prove that 2 ×  + 2  = 2 × + 2 ×2 .
7  14 7  7 14 7 7

2
3. Out of 325 members of a committee, are men and the rest are women. Find the number of
men and women in the committee. 5
1 3
4. Rahul reads of a book on the first day and of the remaining book on the second day. If the
5 10
book has 500 pages, then how many pages are left unread?
1 1
5. Punit’s father gave of his salary to Punit’s mother. She gave of her money to Punit. If Punit
2 3 3
spent of the given money and left with ` 1,200, find his father’s salary.
3
5 1
6. There are 36 apples in a basket. If of them are rotten and of them have black marks, how
6 9
many apples are neither rotten nor marked?
2
7. If Rahul’s monthly income is ` 18,500 and he saves of his salary every month, then find:
5
(a) his saving per month (b) his expenditure per month
4
8. A woman spends of her money and is left with ` 225. How much money did she initially
have? 5
2
9. Samir has covered 5 km and of the journey is still left. How long is his journey?
3
3
10. In a school bus, of the students are girls. If there are 11 boys in the bus, find:
4
(i) number of girls in the bus (ii) total students in the bus

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