alleryStart learning →6 builders build 8 houses in 100 days. Days for 10 builders to build 20 houses?
A125
B200
C150
D120
Answer & Solution
Correct answer: C. 150
Each house takes 6 x 100 / 8 = 75 builder-days, so 20 houses need 1500, and 10 builders take 150 days.
Keep practising Ratio and Proportion, Indices and Logarithms
Browse all Ratio and Proportion, Indices and Logarithms questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
If log base x of 64 equals 3, then x equalsThe value of log base 5 of 125 plus log base 2 of 8 isFor positive a and b (not 1), (log base a of b) x (log base b of a) equalsLog of a product xy equalsIf log10 of an integer is 3.78, how many digits does it have?Who published the first set of base-10 logarithms in 1617?Who introduced logarithms in 1614?The base of the natural logarithm is approximately