1. Sachin’s age after 15 years will be 5 times his age 5 years back. Find out the present age of Sachin?
1. 10 years
2. 11 years
3. 12 years
4. 13 years
Answer & Explanation Answer:- 1 Explanation :-Let the Present age of Sunil = x years Therefore, According to Question, 2. Sandeep’s age after six years will be three-seventh of his father’s age. Ten years ago the ratio of their ages was 1 : 5. What is Sandeep’s father’s age at present? Answer & Explanation Answer:- 3 Explanation :- Let Sandeep’s age 10 years ago = x years & His father’s age 10 years ago = 5x years 3. In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs? Answer & Explanation Answer:- 1 Explanation :- In the first 10 overs Runs = 10 × 3.2 = 32 4. X and Y invest Rs.21000 and Rs.17500 respectively in a business. At the end of the year, they make a profit of Rs.26400. What is the share of X in the profit? Answer & Explanation Answer:- 1 Explanation :- Investment by X : Investment by Y = 21000 : 17500 = 6 : 5 5. X starts a business with Rs.45000. Y joins in the business after 3 months with Rs.30000. What will be the ratio in which they should share the profit at the end of the year? Answer & Explanation Answer:- 2 Explanation :- X invested for 12 month & Y invested for 9 months
x + 15 = 5 (x – 5)
4x = 40
x = 10
1. 30 years
2. 40 years
3. 50 years
4. 60 years
After 6 years, Sandeep’s age = (x + 10 +6) = x +16 & His father’s age = 5x+ 10 +6 = 5x + 16
According to Question , x + 16 = (3/7)(5x + 16)
7x + 112 = 15x + 48 => x = 8
His father’s present age = 5x + 10 = (5 × 8) +10 = 50 years
1. 6.25
2. 5.5
3. 7.4
4. 5
Total runs = 282
Remaining runs to be scored = 282 – 32 = 250
Remaining overs = 40
Run rate needed = 250 / 40= 6.25
1. Rs.14400
2. Rs.26400
3. Rs.12000
4. Rs.12500
Share of X in the profit = (26400/11) * 6 = 2400 * 6 = Rs. 14400
1. 1:2
2. 2:1
3. 1:3
4. 3:1
Ratio of their investement (X : Y)= 45000 × 12 : 30000 × 9 = (45 × 12) : (30 × 9)
X : Y = 3 × 12 : 2 × 9
X : Y = 2 : 1