37
Q:

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

 

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

Answer:   B) u = 1, v = 3/2



Explanation:

Using Trial and error method,

From the options  u = 1, v = 3/2 satisfies both the equations.

Subject: Mathematical Operations
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

If 18 (9) 3 and 36 (30) 5, then what is the value of A in 19 (A) 18?

A) 33 B) 57
C) 75 D) 96
 
Answer & Explanation Answer: B) 57

Explanation:
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3 1130
Q:

In the following question, by using which mathematical operator will the expression become correct?
18 ? 6 ? 9 ? 27

A) x, ÷ and = B) ÷, x and =
C) x, + and = D) +, – and =
 
Answer & Explanation Answer: B) ÷, x and =

Explanation:
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2 1477
Q:

If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then
9 x 9 x 7 = ?

A) 5 B) 6
C) 7 D) 9
 
Answer & Explanation Answer: A) 5

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6 1536
Q:

In the following question, correct the equation by interchanging two signs.
6 + 8 ÷ 4 – 4 = 8

A) ÷ and = B) ÷ and +
C) ÷ and – D) + and –
 
Answer & Explanation Answer: D) + and –

Explanation:
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5 2216
Q:

If 19 (36) 13 and 37 (81) 28, then what is the value of 'A' in 43 (A) 38?

A) 49 B) 36
C) 25 D) 16
 
Answer & Explanation Answer: C) 25

Explanation:
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4 1170
Q:

If "÷" denotes "multiplied by", "+" denotes "subtracted from", "x" denotes "added to" and "–" denotes "divided by",then

12 – 6 + 28 x 3 ÷ 9 = ?

A) -24 B) -53
C) 1 D) 0
 
Answer & Explanation Answer: C) 1

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5 698
Q:

If, 4x3=14; 5x4=18; 6x5=22; Then find the value of 7x6=?

A) 20 B) 26
C) 30 D) 42
 
Answer & Explanation Answer: B) 26

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1 896
Q:

If, 1*2= 1,
2*3= ­1 and
3*4= ­5, Then find the value of 7*9= ?

A) -47 B) -29
C) -2 D) -9
 
Answer & Explanation Answer: A) -47

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4 1160