The unit digit in the product (624 * 708 * 913 * 463) is:

The ratio of two numbers is 4 : 5 and their H.C.F is 4. Find their L.C.M.

A. 96

B. 80

C. 73

D. 48

3639 + 11.95 - x = 3054. Find the value of x.

A. 407.09

B. 479.75

C. 523.93

D. 596.95

If 2x +3y = 30 and (x+y)/y = 11/8, then find the value of 5y + 6x

A. 72

B. 58

C. 64

D. 29

Given that √12 = 3.464 and √120 = 10.95, find the value of √1.2 + √1200 + √0.012.

A. 32.164

B. 35.844

C. 36.164

D. 37.304

The average weight of three boys P, Q and R is 54 kg, while the average weight of three boys Q, S and T is 60 kg. What is the average weight of P, Q, R, S and T?

A. 66.4 kg

B. 63.2 kg

C. 58.8 kg

D. Data Inadequate

E. None of these