The difference between 1(2/9) and its reciprocal is equal to:
In a triangle, one of the angles is 53 degrees. What is the value of the cosine of the smallest angle?
A man has some cows and hens. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:
A card is drawn from a standard deck of 52 playing cards. The probability of getting a queen of clubs or a king of hearts is:
A 25 cm wide path is to be made around a circular garden with a diameter of 4 meters. The approximate area of the path in square meters is:
The present ages of three persons in proportions 4: 7: 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
A man has Rs.480 in the denominations of one-rupee notes, five-rupee notes, and ten-rupee notes. The number of notes for each denomination is equal. What is the total number of notes that he has?
For an amount of money deposited in the bank, the simple interest on it for period of 3 years at 6% per annum is Rs. 90. For the same amount, what is the amount of compound interest at the same interest rate and same time?