CGL 23 27-07-2023 Shift 1


Question 1


A hemispherical bowl has a radius of 7 cm. It is to be painted from inside as well as outside. Find the cost of painting it at the rate of Rs.40 per 20 cm2 ? (Take thickness of the bowl as negligible).

एक अर्धगोलाकार कटोरे की त्रिज्या 7 cm है। इसे अंदर और बाहर दोनों ओर से रंगना है। Rs.40 प्रति 20 cm2 की दर से इसे रंगने की लागत ज्ञात कीजिए? (कटोरे की मोटाई नगण्य मानें)।

Options

A

B

C

D


Solution:

Correct Answer:

B


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