At present sum of age = 65 years After 4 years sum of age will be, => 6x + 5x + 4x + 3x = 65 + 4 × 4 => 18x = 65 + 16 => x = 81/18 => x = 4.5 C’s present age = 4x – 4 = 14 years
A company has two machines: Machine A and Machine B. Machine A was bought for 75,000, and Machine B for 50,000. If the value of Machine A depreciates by...
If a line has direction ratios 2, – 1, – 2, determine its direction cosines.
A factory produces two types of toys, A and B. The production cost of toy A is ₹15 and for toy B is ₹25. If the total selling price of 500 toys is â...
A trader marks up the price of an article by 50% and offers a discount of 20%. If the trader makes a profit of ₹150 on the article, what was its cost ...
Solve the equation: 2x² - 8x + 6 = 0.
4m = Sec A, 4/m = Tan A, find the value of 4( m2Â - 1/m2)
A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
If log 2 = 0.3210 and log 3 = 0.4661, the value of log5 1024 is:
A chemist has three solutions of acid and water. The first solution has 40 percent acid, the second has 60 percent acid, and the third has 80 percent ac...
A car starts from point A and travels at a speed of 40 miles per hour. After 1 hour, a second car starts from point A and travels in the same direction ...
