General Knowledge MCQs
750 MCQs is category mein available hain.
All MCQs in General Knowledge
731 A man’s present age is 125% of what it was 10 years ago, but 83.33% of what it will be after 10 years. Find his present age.
Explanation
- Let present age = x
- x = 1.25(x - 10) => x = 50
- Check: 83.33% = 5/6 of (x+10) => x = (5/6)(x+10) => 6x = 5x + 50 => x = 50
- Both conditions confirm present age = 50 years
Last verified on 25-09-2026
732 Find the next number in the series: 100, 90, 81, 73, ?
Explanation
- The differences between consecutive terms decrease by 1
- Differences: -10, -9, -8, -7
- 73-7=66
Last verified on 25-09-2026
733 Find the next number in the series: 1, 3, 6, 10, 15, ?
Explanation
- This is a series of triangular numbers
- Each term adds one more than the previous addition
- 15+6=21
Last verified on 25-09-2026
734 The sum of ages of 5 children born at intervals of 3 years each is 50 years. Find the age of the youngest child.
Explanation
- Let youngest = x
- Ages: x, x+3, x+6, x+9, x+12
- Sum = 5x + 30 = 50
- 5x = 20 => x = 4 years
Last verified on 25-09-2026
735 Find the next number in the series: 2, 6, 12, 20, 30, ?
Explanation
- The differences between terms increase by 2 each time
- Differences: 4,6,8,10,12
- 30+12=42
Last verified on 25-09-2026
736 Find the next number in the series: 4, 6, 9, 13, 18, ?
Explanation
- The differences between terms increase by 1 each time
- Differences: 2,3,4,5,6
- 18+6=24
Last verified on 25-09-2026
737 The ratio of father’s age to son’s age is 4:1, and the product of their ages is 196. Find the ratio of their ages after 5 years.
Explanation
- Let father = 4x, son = x
- 4x^2 = 196 => x = 7
- Father = 28, Son = 7
- After 5 years: 33:12 = 11:4
Last verified on 25-09-2026
738 Find the next number in the series: 7, 14, 28, 56, ?
Explanation
- Each term is obtained by multiplying the previous term by 2
- 56x2=112
Last verified on 25-09-2026
739 Find the next number in the series: 16, 8, 4, 2, ?
Explanation
- Each term is obtained by dividing the previous term by 2
- 2/2=1
Last verified on 25-09-2026
740 Rahul’s age after 5 years will be 3 times his age 5 years back. Find Rahul’s present age.
Explanation
- Let present age = x
- x + 5 = 3(x - 5)
- x + 5 = 3x - 15
- 2x = 20 => x = 10 years
Last verified on 25-09-2026
