अरविन्द ने एक धनराशि 1 जनवरी, 2012 को बैक मे \( 8 \% \) वार्षिक साधारण ब्याज की दर से निवेश की, उसे 3,144 की धनराशि 7 अगस्त, 2012 को बैंक से प्राप्त हई। उसने कितनी धनराशि बैंक में निवेश की थी?

14. A laptop and a mobile phone were bought for \( ₹ 40000 \) and \( ₹ 24000 \) respectively. The shopkeeper made a profit of \( 8 \% \) on laptop and a loss of \( 12 \% \) on mobile phone. Find she loss percent on the whole transaction.

Nidhi deposited \( ₹ 7,500 \) in a bank which pays her \( 4 \% \) interest per annum compounded annually. Find the amount and the interest received by her after three years.

If the price of a television is \( 15,400 \mathrm{LE} \) after a \( 20 \% \) discount, what was the price before the discount? \( \begin{array}{ll}\text { (a) } 12,320 \mathrm{LE} & \text { (b) } 3,080 \mathrm{LE} \\ \text { (c) } 18,480 \mathrm{LE} & \text { (d) } 19,250 \mathrm{LE}\end{array} \)

अरविन्द ने एक धनराशि 1 जनवरी, 2012 को बेंक में \( 8 \% \) वार्षिक साधारण ब्याज की दर से निवेश की, उसे 3,144 की धनराशि 7 अगस्त, 2012 को बैंक से प्राप्त हुई। उसने कितनी धनराशि बेंक में निवेश की थी?

At what price each must he sell the remaining chairs so as to gain \( 10 \% \) on the whole deal? 16. A shopkeeper sold two electronic gadgets for \( ₹ 44000 \) each. The shopkeeper made a loss of \( 12 \% \) on one and a profit of \( 10 \% \) on the other. Find his overall gain or loss. (Hint. Find C.P. of each)