15.5% of 850 + 24.8% of 650 = ?

If 15 men and 10 boys can do in 1 day as much work as 12 men and 20 boys. How much should a man be paid a day if a boy is to get Rs.10 a day?

A general wishes to draw up his 36581 soldiers in the form of a solid square. After arranging them, he found that some of them are left over. How many are left?

171.995 x 14.995 ÷ 25 = ?

378.35 + 478 ÷ 12.5 =?

74.2% of 7685.4 +?% of 5546.8 = 6750

54.35 × 39.87 ÷ 13.35 =?

If x=√3+1/√3-1and y=√3-1/√3+1,then the value of (x² + y²) is:

(94)² + (?)² = (145)²- (56)²- 3869