There are three pillars X, Y and Z of different heights. Three spiders A, B and C start to climb on these pillars simultaneously. In one chance, A climbs on X by 6 cm but slips down 1 cm. B climbs on Y by 7 cm but slips down 3 cm. C climbs on Z by 6.5 cm but slips down 2 cm. If each of them requires 40 chances to reach the top of the pillars, what is the height of the shortest pillar?
UPSC-2017
X and Y are natural numbers other than 1, and Y is greater than X, which of the following represents the largest number?
UPSC-2018
A number consists of three digits of which the middle one is zero and their sums is 4. If the number formed by interchanging the first and last digits is greater than the number itself by 198, then the difference between the first and last digits is
UPSC-2018
A bookseller sold 'a' number of Geography textbooks at the rate of ₹ x per book, 'a+2' number of History textbooks at the rate of ₹ (x+2) per book and 'a-2' number of Mathematics textbooks at the rate of ₹ (x-2) per book. What is his total sale in ₹?
UPSC-2018
Joseph visits the club on every 5th day, Harsh visits on every 24th day, while Sumit visits on every 9th day. If all three of them met at the club on a Sunday, then on which day will all three of them meet again?
UPSC-2021
A 2-digit number is reversed. The larger of the two numbers is divided by the smaller one. What is the largest possible remainder?
UPSC-2017
