Nathu and Buchku each have certain number of oranges. Nathu says to Buckhu, " If you give me 10 of your oranges, I will have twice the number of oranges left with you “. Buckhu replies, " If you give me 10 of your oranges, I will have the same number of oranges as left with you." What is the number of oranges with Nathu and Buckhu , respectively ?

Thirty-five percent of 740 is 34 more than a number. What is two-fifths of the number?

Find the average of all prime numbers from 1 to 20?

The average of some natural numbers is 15. If 30 is added to first number and 5 is subtracted from the last number, the average become 17.5. then the numbers of natural numbers is :

The greatest number which when divided by 989 and 1327 leaves remainder 5 and 7 respectively is

Which is the largest 3 digit number that is exactly divisible by 15, 25 and 30?

What value will come in place of question mark (?) in the questions given below?

88 × 25 ÷ 4 + 6³ = ?

What value will come in place of question mark (?) in the questions given below?

(4425÷25) ×(8.5×16) = ?