Evaluate the following divisions: (a) `(3b – 6a) ÷ (30a – 15b)​`

Evaluate the following: (i) 6! -5! (ii) (30!)/(28!) (iii) (15!)/(12!3!) (iv) (1)/(4!)+(1)/(5!) +(1)/(6!)

Find each of the following products 5a(6a - 3b)

Which of the following is divisible by 8,15 and 6 ?

If (15a^(2)+4b^(2))/(15a^(2)-4b^(2))=(47)/(7) then find the values of the following (i) (a)/(b) (ii) (7a-3b)/(7a+3b) (iii) (b^(2)-2a^(2))/(b^(2)+2a^(2))

Find the values of the following. (i) 6^(3) (ii) 3^(6) (iii) If a=3 and b=4 , find b^(a)-a^(b) (iv) 3^(4)-4^(2)

Find a and b so that the following odd number is divisible by both 3 and 5.8ab4b.

If a and b are two odd positive integers,by which of the following integers is (a^(4)-b^(4)) always divisible? 3 (b) 6(c)8(d)12

17.The angle of prism is 6^(@)& its refractive index for green light is 1.5 if a green ray passes the it the deviation will be (a) 30^(@) (b) 15^(@) (c) 3^(@)

Which of the following numbers is divisible by 6? 7908432 (b) 68719402 45982014 (d)