The marked price of a AC was Rs.22500. After allowing two successive discounts, it was sold for Rs.17595. If the second discount was 8%, then what was the first discount?

A bank offers 20% compound interest per half year. A customer deposits Rs 7600 each on 1^st January and 1^st July of a year. At the end of the year, the amount he would have gained from interest is –

If the four-digit number 463y is divisible by 7, then what is the value of y?

Sai can do any work in 17 days. While Bindu can do it in 51 days. Sai works on the first day Bindu works on the second day and this sequence continues until the work is over. How many days will it take to complete the work?

12 men can do a work in X days. 20 women can do the same work in (X -1) days. 15 men can do the work in y days while 30 women can do it (Y- 2) days . Find the value of X. 

If $$ (3^{33}+3^{33}+3^{33})(2^{33}+2^{33})=6^x$$, the what is the value of x?