Question
Rs. (2x + 400) is invested at a rate of 20% per annum,
yielding an interest of Rs. 3200 after 4 years. Calculate the interest earned when Rs. (x + 100) is invested under the same conditions.Solution
ATQ, Equation for initial investment: 
Calculate the interest with new principal 
The interest earned with the new investment is Rs.720.
Which of the following is also known as IEEE 802.3 standard?
If radius of a cone is 7 cm and its height is 15 cm, then find the volume (in cm3) of the cone.
यदि किसी संख्या का 20%, 120 हो तो उसी संख्या का 120% होगा -
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