Question
A hemispherical bowl made of iron has an inner diameter
of 84 cm. Find the cost of tin plating it on the inside at the rate of Rs.21 per 100cm² take π=22/7Solution
Diameter = 84cm then r =42cm The total surface area of the hemispherical bowl = 4πr²/ 2 =πr² =2× (22/7) ×42×42 =2×22×42×6 =11088cm² Cost of tin plating = 100cm² = 21Rs 1cm² = .21 Rs then 11088cm² = .21 × 11088cm² =2328.48 Rs
How many chocolates are there in the box with Snickers?
How many people live above the floor on which N lives?
Six boxes D, E, F, G, H and I are kept one above another. The bottommost box is numbered as 1 and the topmost box is numbered as 6. D is three boxes bel...
Who among the following persons opted both Physics and Accountancy?
What is the Ice-cream flavor combination choice of those who are working in Bharti Airtel?
If in a certain way ‘Red’ is related to ‘Banana’, Blue is related to ‘Grapes’ in the same way ‘Black’ is related to who among the follow...
Who among the following person likes Liberty?
A's marks were how much more than that of B?
If all the persons from the top of the building live in ascending order of their experience then, the floor of how many persons remains unchanged?
Relevant for Exams:
