A certain number of two digits is three times the sum of its digits, and if 45 be added to it, its digits are reversed. Find the number. Mcqs

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A certain number of two digits is three times the sum of its digits, and if 45 be added to it, its digits are reversed. Find the number.

(A) 27
(B) 39

(C) 45
(D) None of these

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Look at this series: 58, 52, 46, 40, 34,_________ What number should come next...?

(A) 26
(B) 28

(C) 30
(D) 32

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The principal which will amounts to Rs 270.40 in 2 years at the rate of 4% per annum compound interest is..?

(A) 150
(B) 200

(C) 250
(D) None of these

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If x =3, then x³...?

(A) 6
(B) 9

(C) 27
(D) 81

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If 1/4 writing, 1/6 reading and 1/8 designing are participated in different contests and 33 participants of mathematics, then total number of participants are:...?

(A) 70
(B) 71

(C) 72
(D) 73

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A father is now three times as old as his son fiver year back he was four times as old as his son the age os son ( in year) is:...?

(A) 10
(B) 12

(C) 15
(D) 18

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Factoring 3x2y2-14xy+16...?

(A) xy-2X3xy-8
(B) xy-23y-8

(C) y-23xy-8
(D) None of these

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If a : b = 2 : 3 and b : c = 4 : 3 then find a : b : c...?

(A) 8: 12: 9
(B) 2:3:8

(C) 2:3:9
(D) 2:3:12

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If 60 women spin 48 kg cotton by working 8 hours daily, how much cotton will 30 women spin by working 12 hours daily...?

(A) 32 kg
(B) 34 kg

(C) 36 kg
(D) None of these

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The mean proportional of 4 and 16 is:...?

(A) +16
(B) +8

(C) +9
(D) None of these

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