A can copy 50 papers in 10 hours while both A & B can copy
70 papers in 10 hours. Then for how many hours
required for B to copy 26 papers?
Answer Posted / dinesh kumar
A can copy 50 pages in 10hrs.
Therefore, In 1hr A can copy = 50/10 = 5pages
A and B can copy 70 pages in 10hrs.
i.e A + B =70
1hr A and B can type = 70/10 = 7pages
The given data's both A & A+B in 10 hrs only,
so, we can directly apply the A value in the A+B
A+B=7 (for 1hr)
5+B=7 => B=2 (B can type 2 pages in 1hr)
Therefore, for 1hr => 2 pages
Xhr => 26 pages
then Xhr = 13hr (by cross multiplication)
For B to type 26 pages in 13hrs.
Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
Complete the series: 5, 20, 24, 6, 2, 8, ?
There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small ball.The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at Nrev/sec. what is 'N' for the horizontal line from the centre of small wheel always is horizontal.
Find the value of ( 0.75 * 0.75 * 0.75 - 0.001 ) / ( 0.75 * 0.75 - 0.075 + 0.01)?
What percent of 60 is 12?
A student is ranked 13th from right and 8th from left. How many students are there in totality ?
The ratio of the length : breadth : height of a cuboid is 5 : 4: 3, and the volume is 7500. What will be its surface area ?
the decimal number was given.it was converted to other system.they asked to identify the system.i.e. octal,hexadecimal.
pick the odd one out bend shave chop whittle shear
33 1/3 of 101 + 296 is
f(X)= f(X-1)+f(X-2) FOR X>1 THEN X= ?
Complete the sequence A, E ,I ,M ,Q ,U , _ , _?
three students appear in a test but no one write there name on answer sheet .and they submitted their sheet to teacher . when teacher distributed their answer sheet . what is probability that no one get their own answer sheet.
What is the perimeter of the quadrilateral?
HOW + MUCH = POWER Then P + O + W + E + R =
X < 0, Y <> 0 then what is the possibility that the result is always positive?