Question
'K' can do 3/4th of a work in 6 days and 'J'
can do 2/5th of the same work in 4 days. How long (in days) will they take, if they work together to finish the work?Solution
K can do 3/4 work in 6 days So, K can do a work in 6 x 4 / 3 days = 8 days similarly, J can do a work in 4 x 5 / 2 days = 10 days working together = 1/8 + 1/10 = 5 + 4 / 40 = 9/40 = 4 (4/9) days
How many persons have better marks than V?
How many persons are standing in the row if Ravi is standing 12th from the left end of the row, and 13th from the right end of the...
Six persons have different heights. T is shorter than at most three persons. S is shorter than R but taller than T. W is immediate shorter than U. V is ...
If Karan scored 151 runs in match U, then runs scored by Karan in match S can be _____.
Six players S, T, U, V, W, and X scored different runs in a cricket match. V scored more than X and S. Three players scored more than W, who scored just...
Who among the following is the tallest person?
 Some girls were sitting in a queue. Priya is sitting 14th from left end and Disha is 7th from right end. If there are 4 girls between Priya and Disha,...
How many items are heavier than the item R?
In a class of 58 students, all the students are sitting in a row facing north, Reyansh is sitting 28th from the right end of the row. Only 17 students a...
How many straight lines are there in the given figure?