A boy goes to school from home at a speed of 10 km/s & returns back at 30 km/s. Find average speed?
Consider 5 siblings born apart by 3 years each . If the sum of all ages of the children is 50 years, what is the age of the youngest child?
A man has 2 sons. Presently mans age is thrice the ages of his 2 sons. 5 years hence , the fathers age will be twice the sum of the ages of the his sons. What is the age of father?
Kanishk present age is 2/5th of his mother. After 8 years he will be one-half of his mother. How old is the mother at present?
Padmini is 40 years & Krishna is 60 years old. How many years ago was the ratio of their ages was 3:5?
Anjanas father was 38yrs of age when she was born , while her mother was 36 yrs old when her brother 4 yrs younger to her was born . What is the diff b/w age of her parents ?
The sum of the present ages of father and his son is 60yrs. Six years ago, fathers age was 5 times the age of son . Find the age of son after 6 years?
A is 2 years old than B , who is twice as old as C. Total ages of A,B,C be 27. How old is B ?
Krishnas age after 15 years will be 5 times his age 5 years back. What is his present age ?
Present age of Sameer and Anand are in the ratio 5 . 4 respectively. Three years hence their ratio will become 11 . 9. What is Anands present age ?
Are all prime numbers odd numbers?
Shyam is travelling on his cycle and has calculated to reach point A at 2 PM If he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach point A at 1 PM ?
If the wheel of a bicycle makes 560 revolutions in travelling 1.1 km, what is its radius?
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