SQUARE ROOT RATIO AND PROPORTIONS PERCENTAGE - Practice Mode

1) How many days a mechanic takes to assemble 64 machines if he assembles 8 machines in 3 days?

20 days 22 days 24 days 26 days

Correct Answer: 24 days

2) What will be the rpm of smaller gear if a 180 mm dia meshes with 60 mm dia gear and the bigger gear makes 60 rpm?

120 rpm 140 rpm 160 rpm 180 rpm

Correct Answer: 180 rpm

3) What is the percentage of copper if the casting weight of copper 42.3 kg and tin weight 2.7 kg?

Cu 92% Cu 94% Cu 96% Cu 98%

Correct Answer: Cu 94%

Explanation:

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4) A motor cycle tyre is sold for Rs 300/- what is the purchase price if 25% profit is added to it.

Rs 200 Rs 220 Rs 240 Rs 260

Correct Answer: Rs 240

5) What is the decimal fraction of conversion of 18.5%?

0.185 0.175 0.165 0.195

Correct Answer: 0.185

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