Page 54 - Arithmetic
P. 54
Answer:
1. b 2. c 3. d
Explanation:
1. Ron’s 1 day’s work =
Ratio of their 1 day’s work = 1 : 1 : 1 = 3:2:5 10 15 6
ShareofJohn=900× 2 =$180 10
2. Work done by Jerry in 2 days =
Remaining work = 1 - =
1111
- ( + ) =
3 10 15 6
1 × 2 = 1 10 5
Work completed by Jerry and Donald in one day = 1 + 1 = 4 10 6 15
In one day both the farmers have done 4 work 15
The remaining work 4 will be done in 15 × 4 = 3 days 545
So, the total number of days in which the work was done = 2 + 3 = 5 days
3. Work done by Samantha and Ivanka in 15 days = 1 × 15 = 3 20 4
Remaining work = 1 - =
Now 1 work has to be completed by Samantha in 15 days. 4
Working alone she can complete the work in 15 × 4 = 60 days
14
55
31
44
Page 53 of 55
Arithmetic Concept
