Two pipes can fill a cistern, individually, in 98 min and 28 min, respectively. There is a pipe located at the bottom of the cistern to empty it. If all the three pipes are opened simultaneously, then the empty cistern gets filled in 21 min. How long will the pipe at the bottom of the cistern take to empty the completely filled cistern if no other pipe is then open?
What will come in the place of the question mark (?) in the following equation, if '+' and 'โ' are interchanged and 'ร' and 'รท' are interchanged?
173 รท 3 โ 135 ร 5 + 17 = ?
Gopal gets a 2% increase in his sale amount in the first year and a 20% increase in the second year, and with that his present sale is โน1,83,600. What was his sale (in โน) two years ago?
This question is based on the five, three-digit numbers given below.
(Left) 611 733 279 265 370 (Right)
(Example: 697 โ First digit = 6, second digit = 9 and third digit = 7)
(NOTE: All operations to be done from left to right.)
What will be the resultant if the second digit of the highest number is added to the first digit of the lowest number?
