exam Maths Puzzle Numerical Ability

if one-half a number is subtracted from five-sixths of the number, the difference is 6. Find the number.

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exam Other Question

Here is the problem:

A rancher has to mix three types of feed. The table below gives the amounts of nutrients contained in each 100-pound bag of grain:

Grain I has 10 lb if H is a subgroup of G. then (let phe be denoted by k) k[H] = {k(h) in H] is a subgroup of G'. That is isomorphism carries subgroups into subgroups.