Quantitative Aptitude - Arithmetic Ability Questions

The value of ds+t÷ds÷dt

What is the value of 23+5252-23 ?

What is the measure of an interior angle of a regular polygon of 10 sides?

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?

A sum of Rs 1200 amounts to Rs 1740 in 3 years at simple interest. If rate of interest is increased by 3%, then what will be the new amount (in Rs)?

Sachin lent out Rs 60000 in two parts, first at 4% and the second at 10% interest. The yearly average interest comes out to be 6.4%. What are the amounts (in Rs) that were lent at 4% and 10% respectively?

The average revenues of 7 consecutive years of a company is Rs 75 lakhs. If the average of first 4 years is Rs 70 lakhs and that of last 4 years is Rs 82 lakhs, what will be the revenue for the 4th year.

Let O be the orthocentre of the triangle ABC. If ∠BOC = 150°, Then ∠BAC is