Advertisements
Advertisements
प्रश्न
40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days?
उत्तर
Number of men required to complete the work in 26 days = 40
Number of men required to complete the work in 1 day = 40 × 26 = 1040 men (less men more days)
Number of men required to complete the work in 16 days = `1040/16` = 65
APPEARS IN
संबंधित प्रश्न
Find the mean proportional between a – b and a3 – a2b
Find the value of the unknown in the following proportion :
3 : 4 : : p : 12
Find the third proportional to:
x - y, x2 - y2
Find the third proportional to 0.24, 0.6
A labourer earns Rs 1980 in 12 days.
(i) How much does he earn in 7 days?
(ii) In how many days will he earn Rs 2640?
If a, b, c are in continued proportion, prove that: (a + b + c) (a – b + c) = a2 + b2 + c2
Are 30, 40, 45, and 60 in proportion?
Find the missing number in the box in the proportions:
`8/square = 3.2/4`
Write True (T) or False (F) against the following statement:
12 : 18 : : 28 : 12
If a, b, c and d are in proportion, the value of `(8a^2 - 5b^2)/(8c^2 - 5d^2)` is equal to ______.