Question
78Â Â Â 79Â Â Â Â 75Â Â Â 84Â Â Â
 ?      93    57 Find the missing number in the following number series:Solution
The series is: 78 + 12 = 79 79 – 22 = 75 75 + 32 = 84 84 – 42 = 68 68 + 52 = 93 93 – 62 = 57
A’s age is 120% of what he was 4 years ago, But 60% of what it will be after 4 years. What is his present age?
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A’s age is the seventh part of his father’s age. After 10 years, the age of A’s father will be twice the age of B. If B’s 5th bi...
A is younger than B by 3 years. If the ratio of A and B ages is 7:10 respectively, then find the age of A.
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