Mathematical Concepts
History
Miscellaneous
Calculation
100

What is the ratio between circumference of a circle and diameter called?

pi

100

Which famous scientist's birthday comes on March 14?

Albert Einstein

100

What is the value of x in the following series: 22, 42, 64, 88, x. 

114

200

Why pi day is celebrated on March 14?

Because it represents the first 3 digits of pi (3.14)

200

How much interest will Rs. 12,000 earn in 8 months at an annual rate of interest of 8%?

Rs. 640

300

A man is 30 years older than his son. In two years, his age will be 4 times the age of his son. What is the present age of his son?

8 years

400

What is the value of till 10 decimal places?

3.141592654

400

When was the Greek letter  first used to represent the ratio of a circle's circumference to its diameter, and by whom?

In 1706, by William Jones

400

If p/q = ⅖, then find the value of the expression (7p-2q)/(7p+3q).

4/29

500

What method did Archimedes use to approximate pi?

Method of Exhaustion

500

A direction pole was situated on the crossing. Due to an accident the pole turned in such a manner that the pointer was showing East, started showing South. One traveller went in the wrong direction thinking it to be West. In what direction actually he was travelling?

South

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