a) b) c) d) correct answer is: d) Explanation Ans:
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a) 141 b) 131 c) 121 d) 120 correct answer is: c) 121formula use: (a-b)2=a2 – 2.a.b + b2 EXPLANATION Put the value of Ans : ...
a) 49 & 77 b) 29 & 77 c) 90 & 102 d) 39 & 67 correct answer is: a) 49 & 77 Explanation Two numbers ratio are Let, one number is Another number is ...
a) 11 & 29 b) 15 & 27 c) 18 & 32 d) 24 & 52 correct answer is: b) 15 & 27 Explanation Two numbers ratio are Let, one number is Another number is ...
a) 40 & 65 b) 45 & 60 c) 75 & 50 d) 75 & 30 correct answer is: b) 45 & 60 Explanation Two numbers ratio are Let one number is Another number is ...
a) 50 & 24 b) 64 & 12 c) 48 & 18 d) 44 & 18 correct answer is: c) 48 & 18 Explanation The A and B age ratio is Let, A’s present age B’s ...
a) 21 grams b) 24 grams c) 27 grams d) 29 grams correct answer is: c) 27 grams Explanation The ratio of copper and zinc is The weight of copper in the alloy is gramsLet ...