What least number must be added to 1056, so that the sum is completely divisible by 23?
An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5%. Its cost price would be:
666 ÷ 6 ÷ 3 = ?
Which African country is known as the 'Rainbow Nation' due to its diverse population and history of apartheid?
Find the highest common factor of 36 and 84.
What handheld communication device, invented by martin Cooper in 1973, is considered the precursor to modern cell phones?