Any six-digit number that is formed by repeating a three-digit number, is always divisible by:

Find the greatest value of (a + b) such than an 8-digit number 4523a60 b is divisible by 15.

AC is a chord of circle whose centre is at O. If B is any point on the arc AC and ∠OCA=20⁰ , then the magnitude of ∠ABC is

The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.) 

A person invests a certain amount on simple interest. After 8 years he gets 16% interest. If he invests the same sum for 4 years, then he gets Rs. 9600 as interest, then the sum is

What is the value of $${{0.6}÷{0.6}×{0.6}+{0.5}×{0.5}÷{0.5}\over{0.6}×{0.5}+{0.3}}$$ ?

The sides BA and DE of a regular pentagon are produced to meet at F. What is the measure of ∠EFA?

Direction: What value will come in place of the question mark (?) in the following question?

38, 43, 215, 220, 1100, ?