The ratio of milk and water in a mixture is 3 : 5 We added 10 Lt water to the mixture then ratio becomes 3 : 7. Find the initial quantity of milk? a) 15 Lt b) 12 Lt c) 20 Lt d) 17 Lt Sol:
In ∆ PQR, ∠Q= 90°, PQ = 8 cm and QR = 15 cm. The bisector of ∠P of meets QR at D. What is the length of PD? Sol:
A shopkeeper increases the selling price of an article by 15%. After increasing the selling price, he noticed that the profit percentage changed from 5% to 15%. The percentage increase in the cost price is. a) 4% b) 5% c) 6% d) 8% Sol: Increase in SP of an article = 15% Profit percentage change
The base of a right Prizm is a hexagon with each sides 6 cm. If its volume 972cm², then its lateral surface area (in cm²) is a) 242 b) 248 c) 266 d) 216√3 Sol:
The base of a right Prizm is a hexagon with each sides 6 cm. If its volume 972cm² Read More »
A shopkeeper claims to sell his articles at 20 per kg which cost him 23 per kg. But while selling, he uses a false weight and gives only 800 gm instead of 1 kg. What is his profit percentage? Sol: Shopkeeper claims to sell at Rs. 20 per kg, He buys it for Rs. 23
If a2+b2+c2 + 130/9 = (5a+6c – 14/3b) -25/4, then is: a) -2 b) 2√3 c) -3 d) -7 Sol:
If a2+b2+c2 + 130/9 = (5a+6c – 14/3b) -25/4 then is Read More »
If the sum of the diagonals of a rhombus is L and the perimeter is 4P, find the area of the rhombus? Sol: Sum of the diagonals of a rhombus is L Perimeter is 4P
if a : b : : 2 : 3, and b : c : : 4 : 5 then find a : b : C. a) 8 : 12 : 15 b) 4 : 3 : 5 c) 4 : 6 : 9 d) 2 : 4 : 7 Sol: a:b=2:3 b:c=4:5 a:b:c=8:12:15
if a : b : : 2 : 3, and b : c : : 4 : 5 then find a : b : C. Read More »
A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A’s share is Rs. 855. The total profit is. a) 1500 Rs. b) 1350 Rs. c) 1425 Rs. d) None of these Sol:
If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=? a) 5 b) 7 c) 6 d) 8 Sol:
If cos A=sin2A. and a sin12A+b sin10A+c sin8A+sin6A=1. Then a+b+c=? Read More »
