The solution of 3(2u + v) = 7 uv and 3(u + 3v) = 1 | Mathematical Operations Questions & Answers

Q:

In the following question, correct the equation by interchanging the two signs.
6 ÷ 17 x 51 + 6 – 12 = – 4

A) x and ÷	B) + and ÷
C) + and –	D) – and ÷

Answer & Explanation Answer: A) x and ÷

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Q:

If "÷" denotes "multiplied by", "+" denotes "subtracted from", "–" denotes "added to" and "x" denotes "divided by", then which of the following equation is true?

A) 16 + 19 x 21 – 5 = 201	B) 5 x 6 + 4 ÷ 3 = 37/6
C) 6 x 3 + 12 ÷ 3 = 21	D) 18 x 6 ÷ 8 – 12 = 36

Answer & Explanation Answer: D) 18 x 6 ÷ 8 – 12 = 36

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Q:

Find the missing number in the given question/

A) 54	B) 60
C) 62	D) 66

Answer & Explanation Answer: D) 66

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Q:

$If {(3)}^{2} @ 1 * 7 = 98 and {(4)}^{2} @ 2 * 16 = 178, then {(5)}^{2} @ 3 * 9 = ?$

A) 218	B) 262
C) 253	D) 259

Answer & Explanation Answer: B) 262

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Q:

If "+" denotes "divided by", "x" denotes "added to", "÷" denotes "subtracted from" and "–" denotes "multiplied by", then
54 + 162 – 18 x 12 ÷ 6 = ?

A) 4	B) 16
C) 12	D) 10

Answer & Explanation Answer: C) 12

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Q:

If ${(2)}^{#} * 4 = 2$ and ${(4)}^{#} * 4 = 16$ , then what is the value of A in ${(6)}^{#} * A = 18$ ?

A) 12	B) 14
C) 16	D) 20

Answer & Explanation Answer: A) 12

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Q:

In the following question, correct the given equation by interchanging two numbers.
8 x 3 ÷ 4 + 9 – 5 = 16

A) 3 and 4	B) 4 and 8
C) 5 and 3	D) 5 and 9

Answer & Explanation Answer: C) 5 and 3

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Q:

If 13*45 = 29 ,
24*58 = 41 ,
74*32 = 53 ,
what should 97*47 be?

A) 73	B) 72
C) 63	D) 64

A) u = 1, v = 0	B) u = 1, v = 3/2
C) u = 0, v = 3/4	D) u = 0, v = 1

The solution of 3(2u + v) = 7 uv and 3(u + 3v) = 11 uv is _____

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