The surface area of hollow cylinder with radius 'r and height 'h' is measured by-

Created: 4 months ago | Updated: 2 months ago

π

r-h

π

r+h

π

π

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In a class of 120 students 70 percent can speak only Bengali and the rest can speak English . If 25 percent of those in the class who can speak English can also speak Bengali , how many of the students in the class can speak bengali?

Created: 4 months ago | Updated: 2 months ago

Job Solution Probashi Kallyan Bank Probashi kallyan bank - senior officer -19.01.2018 গণিত

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