(49/16)^x× (64/343)^(x-1) = 4/7 ⇒(7/4)^2x× (4/7)^(3x-3) = 4/7 〖⇒(4/7)〗^(-2x)× (4/7)^(3x-3) = 4/7 ⇒ -2x+3x-3=1 ⇒ x = 4
The ratio of two numbers is 5:4. A number y is then subtracted from each of the two given numbers so that the ratio of the resultant numbers becomes 2:1...
Shivank purchased a total of 630 kg of wheat, rice, and pulses in the ratio 3:2:4, respectively. After selling 70% of the wheat, 40% of the rice, and 40...
In a chemistry lab two beakers A and B contains 36% and 40% of spirit respectively. If two liters from A is mixed with 4 liters of B. The ratio of spiri...
Ratio of income of A and B is 7:5 and the ratio of expenditure of A and B is 2:3. The savings of B is Rs.3500. If the expenditure of A gets double then...
If A: B = 2:3 and B: C = 3:4 find the value of (A+B): (B+C): (C+A).
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 480, which is four times the runs scored by B. Fi...
<p><p>Sides of a parallelogram are in the ratio 6:5. Its area is 2700 sq. units. Altitude on the greater side is 30 units. Altitude ...
A sum of Rs 31866 is divided between A, B and C such that the ratio of shares of A and B is 9:8 and that of A and C is 4:5. The share (in RS) of B is:
