In what ratio should a grocer mix tea of ₹ 60 per kg with tea of 65 per kg so that by selling the mixture at the rate of ₹ 68-20 per kg, he should make a profit of 10%

Two equal vessels are filled with the mixture of water and milk in the ratio of 3:4 and 5:3 respectively. If the mixtures are poured into a third vessel, the ratio of water and milk in the third vessel will be

Two candidates fought an election. One of them got 65% of the total votes casted and won by 420 votes. What is the total number of votes polled if no vote is declared invalid?

O, G, I and H are respectively the circumcentre, centroid, incentre and orthocentre of an equilateral triangle. Which of these points are identical?

A sum invested at compound inrerest amounts to ₹7,800 in 3 years and ₹11,232 in 5 years. What is the rate per cent? 

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

?³ + 115.86 – 24.93 × 1.90 = 190.97

The 4th term of an arithmetic progression is 15, 15th term is -29, find the 10th term?

Twenty-one time of a positive number is less than its square by 100. The value of the positive number is