Question
The angle of depression of the foot of a building from
the top of a tower 54√3 m away is 30°. How high is the tower?Solution
=> tan A = height/base => tan 30 = height/54 √3 => 1/√3 = height/54 √3 => height = 54 √3/√3 => height = 54 m
Which of the following fractions is the largest?
A man distributed some candies to his three sons A, B and C. A, being the eldest got two times the number of candies that C got while A and B together...
12.5% of 96 =?
The value of
- The product of two decimals is 0.675. If one of the decimals is 2.5, then find the other decimal.
Express 7/16 as a decimal correct to three decimal places.
A rope is 20 m long. A person uses 3/5 of it and then cuts off 1/4 of the remaining part. How many metres of rope are left?
Evaluate: 4.8 × 2.5 + 9.6 ÷ 0.4
2/5 of a number plus 3/10 of the same number is 70. Find the number.
If the sum of 60% of a fractional number and the number's square root is 5 greater than one fifth of the number, then the number is
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