A telecom service provider engages male and female operators for answering 1000 calls per day. A male operator can handle 40 calls per day whereas a female operator can handle 50 calls per day. The male and the female operators get a fixed wage of Rs. 250 and Rs. 300 per day respectively. In addition, a male operator gets Rs. 15 per call he answers and female operator gets Rs. 10 per call she answers. To minimize the total cost, how many male operators should the service provider employ assuming he has to employ more than 7 of the 12 female operators available for the job?
(1) 15 (2) 14 (3) 12 (4) 10
10
male cost= 850 Female Cost=800 So employ all 12 females this takes 600 calls rest 400 calls to be taken up by 10 males
2. Let S denote the sum of three natural numbers. Let D denote the sum of the products of them taken two at a time. Let P denote their product. If 3S + D = 2P, how many combinations are there for the numbers?
A circle of radius 4 units is inscribed in a triangle ABC (means circle touches all the sides of the triangle). It is given that circle touches BC at D such that BD = 6 and DC = 8. Find the length of sides AB and AC.
a) 13 and 15 b) 12 and 14 c) 13 and 16 d) 14 and 16
A man buys shares at a discount of Rs x. Later he sells all but 10 of the shares be purchased at a premium of Rs x. If his investment was Rs 4500 and proceeds from the sale were Rs 6250, how many shares did he buy originally?(Assume face value of shares as Rs 100)
Find the last three digits of the sum of all positive integers N such that 1≤N≤1000, N=pq, where p is less than q and both are primes, and N divides {(2^(q−p)) −1}
Chandra adds first N natural numbers and finds the sum to be 1850. But actually one numbers added twice by mistake. find the difference between N and that number
What is the sum of digits of the least multiple of 13,which when divided by 6,8 and 12 leave 5,7 and 11 as the remainder? please explain options are a.5 b.6 c.7 d.8
@abhi_14 Its 300*9^5 9abcdefg - (9^6)*4 abcdefgh - one of b, c, d, e, f, g is 9, so 6*8*(9^5)*4 abcdefg9 - 8*(9^6) Add them to get (9^5)(36 + 192 + 72) = 300*9^5
A circle is inscribed inside a quadrilateral ABCD such that it touches all the sides of the quadrilateral at P, Q, R, and S. Which of the following is correct?
A circle is inscribed inside a quadrilateral ABCD such that it touches all the sides of the quadrilateral at P, Q, R, and S. Which of the following is correct?