# LCM & HCF

A gardener had a number of shrubs to plant in rows. At first he tried to plant 8,then 12 and then 16 in a row but he had always 3 shrubs left with him. On trying 7 he had none left. Find the total number of shrubs.

A)154
B)147
C)137
D)150

If m and n are two whole numbers and if $m^{n}$= 49. Find $n^{m}$, given that n ≠ 1

A)118
B)94
C)561
D)128

What will be the least number which when doubled will be exactly divisible by 12,18,21 and 30?

A)630
B)360
C)603
D)306

HCF and LCM of two numbers are 11 and 385 .If one number lies between 75 and 125 then that number is

A)123
B)73
C)77
D)154

If the L.C.M of x and y is z, their H.C.F is

A)xy/z
B)xyz
C)(x + y)/z
D)z/xy

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