Question
A set of Q men can complete a work in 20 days, while
(Q+4) women can complete the same work in 28 days. If 9 men and 13 women together can finish the same work in 7 days, find Q.Solution
ATQ,
Qm × 20 = (Q+4)w × 28
5Qm = 7(Q+4)w
m/w = (7Q+28) / 5Q
Now,Q × (7Q+28) × 20 = [9 × (7Q+28) + 13 × 5Q] × 7
140Q² + 560Q = 63Q + 252 + 65Q
140Q² - 128Q - 252 = 0
70Q² - 64Q - 126 = 0
70Q² - 70Q + 6Q - 126 = 0
10Q(7Q - 7) + 6(7Q - 7) = 0
(7Q - 7)(10Q + 6) = 0
Q = 7/7, -6/10
Q = 1
Which category of banks has the highest Priority Sector Lending (PSL) target as a percentage of Adjusted Net Bank Credit (ANBC)?
If a long-term investment suffers a permanent decline in value, how should it be accounted for under AS 13?
Contribution to Pension Scheme notified by the Central Government under section 80CCD (1) provides a deduction for the amount paid or deposited by an em...
A machine is purchased for $100,000 and $10,000 is spent on its installation. Residual value of the machine is $9,000 and its useful life is 5 years. Ca...
Which Income Computation and Disclosure Standard (ICDS) deals with "The Effects of Changes in Foreign Exchange Rates"?
With respect to time value of money, which of the following statement is incorrect?
Bank A/c is generally maintained in the ___?
SA 500 deals with which of the following?
The time limit for applying for GST registration is within __________ of becoming liable to obtain GST registration.
Under CGTMSE, what is the applicable Annual Guarantee Fee (AGF) for loans between ₹5–₹8 crore?
Relevant for Exams:
