২৭২৫১
A ladder is placed against a wall such that its foot is at a distance of 2.5 m from the and its top reaches a window 6 m about ground. Find the length of the ladder.
উত্তর
6.5 m
২৭২৫৯
A bond gets matured in 10 years. invested TK. 42,000 in this bond and received Tk. 105000 once the bond matured. If the bond was under simple interest. then what was the rate of interest per annum?
উত্তর
15%