১৫৩১৩
একটি আয়তক্ষেত্রের দৈর্ঘ্য প্রস্থের ২ গুণ। আয়তক্ষেত্রের ক্ষেত্রফল ২৮৮ বর্গফুট হলে এর পরিসীমা কত?
উত্তর
৭২ ফুট
১৫৩১৫
N can do a piece of work in 80 days. He works at it for 10 days and then M alone finishes the remaining work in 42 days. In how much time will N and M workings together, finish the work?
উত্তর
30 days
১৫৩১৬
A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, the number of revolutions made by the larger wheel will be-
উত্তর
9
১৫৩১৭
A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is-
উত্তর
253
১৫৩১৮
The batting average for 40 innings of a cricket player is 50 runs. His highest score in an innings exceeds his lowest score by 172 runs. If these two innings are excluded, the average score of the remaining 38 innings is 48 runs, Find his highest score in an innings.
উত্তর
174 runs
১৫৩২০
A number x is divided by 7. When this number is divided by 8, 12 and 16, it leaves remainder 3 in each case. The least value of x is?
উত্তর
147