a) 3 b) 9 c) 7 d) 5 correct answer is: b) 9 Explanation [cross multiply] Ans:
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a) 0 b) -1 c) 3 d) -3 correct answer is: a) 0 Explanation Ans:
a) 12 b) 16 c) 17 d) 18 correct answer is: d) 18 Explanation Let the fourth proportional be Then, the proportion is The cross-product rule is: – (Product of extremes = Product of means)So, ...
a) 5 km/hr b) 3 km/hr c) 6 km/hr d) 8 km/hr correct answer is: b) 3 km/hr Explanation We know,Speed And converting to requires multiplying by or . Here ...
a) 40000 m square b) 20000 m square c) 10000 m square d) 800 m square correct answer is: c) 10000 m square Explanation We know, Perimeter of a square Area of a square ...
a) 175 km b) 165 km c) 160 km d) 150 km correct answer is: b) 165 km Explanation Here, Train speed is 27 ½ km/hr and Distance traveled in 6 hrs.We know,Distance Here, Speed ...
(i) What is the area of the floor(ii) Area of the celling(iii) Cost of white washing the walls without doors & windows at the rate of Rs. 12 per sqm(iv) Cost of polishing both sides of doors and ...