Find the odd number from the given alternatives




1.Find the odd number from the given alternatives?
(a) 36
(b) 64
(c) 54
(d) 108

Ans.(b)
Sol. Except 64, sum of digits in all numbers is 9.

2. If P means ‘division’, T means ‘addition’, M means ‘subtraction’ and D means ‘multiplication’, then what will be the value of the expression 12 M 12 D 28 P 7 T 15?
(a) –30
(b) –15
(c) 15
(d) None of these

Ans.(d)
Sol. 12 M 12 D 28 P 7 T 15?
After changing sign
= 12 – 12 × 28 ÷ 7 + 15
= 12 – 12 × 4 + 15
= 12 – 48 + 15 = 27 – 48 = –21.

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