July 2013

Ncert Solutions Class 10th Chapter 13 Surface Areas and Volumes Exercise 13.2 Question 3
July 30, 2013  Author: Jashan
A gulab jamun contains sugar syrup up to about 30% of its volume. Find approximately how much syrup would be found in 45 gulab jamuns, each shaped like a cylinder with two hemispherical ends with length 5 cm and diameter 2.8 cm.
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How to know if matrix is Invertible?
July 25, 2013  Author: Jashan
Any given square matrix A is said to be Invertible if its inverse exists. In other words, we can say that square matrix A is said to be Invertible if there exists another square matrix B such that where I is an identity matrix of same order as of A and B.
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Ncert Solutions Class 10th Chapter 13 Surface Areas and Volumes Exercise 13.2 Question 2
July 24, 2013  Author: Jashan
Â Rachel, an engineering student, was asked to make a model shaped like a cylinder withÂ two cones attached at its two ends by using a thin aluminium sheet. The diameter of theÂ model is 3 cm and its length is 12 cm. If each cone has a height of 2 cm, find the volumeÂ of air contained in… Read More »
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