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Let the total number of students in a class be x ∴ According to the question, Number of girls = 3/7 x and number of boys = x - 3/7 x = 4/7 x Number of girls who are absent = 1/3 × 3/7 x = x/7 and number of boys who are absent = 1/5 × 4/7 x = 4x/35 ∴ Total number of students who are present = x - x/7 - 4x/35 = (35x - 5x - 4x)/35 = 26x/35 ∴ The 26/35 part of the students are present in the class.
A was travelling from point X to point Y. He increased his speed by 12 km/h after every hour. He reached his destination in 16 hours. If his initial spe...
Two cars, 'A' and 'B,' are heading towards each other on a straight road. Car 'A' is traveling at a speed of 56 km/h, while Car 'B' is moving at 34 km/h...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 15 km/hr and 10 km/hr, respectively. If the distance covered by ‘A�...
Train B crosses Train A, which is approaching from the opposite direction, in 28 seconds. If the combined length of Train A and Train B is 2240 meters, ...
The combined speed of 'Amit' and 'Bhanu' is ________ km/hr. 'Amit' traveled for 5 hours, and 'Bhanu' traveled for ______ hours in such a way that the di...
In a 500 meter marathon, if Akhil beats Suraj by 160 meters and Suraj beats Puneet by 250 meters, then find the distance by which Akhil beats ‘C’.
Two vehicles, named as 'X' and 'Y', travel along side-by-side paths but in opposite directions. The length of vehicle 'Y' surpasses that of 'X' by 12.5%...
Sheetal rides a bike at an average speed of 40 kmph and reaches her destination in 5 hours. Hemlata covers the same distance in 4 hrs. If Sheetal increa...
Excluding the Stoppages i.e. Non-stop, the speed of a Bullet train is 810 km/h and including the stoppages, it is 720 km/h. calculate for how many minut...
