If the sum of two numbers is 14 and their difference is 10, find the product of these two numbers.
Options:
A . 18
B . 20
C . 24
D . 22
Answer: Option C Let the two numbers be are a and b ∴ a + b = 14.....(i) a - b = 10.....(ii) By adding equation (i) and (ii) we get 2a = 24 ∴ a = 12 and b = 2 ∴ Product of these two numbers= 12 × 2 = 24
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