Question
Which insect is commercially exploited for the
production of natural resin known as lac?Solution
Laccifer lacca is a scale insect that secretes lac—a natural resin used in varnishes, cosmetics, and dyes.
The highest common factor (HCF) of two numbers is 17. If their product is 867, how many pairs of numbers satisfy these conditions...
There are 15 numbers such that average of first 12 numbers is 45 while the average of last five numbers is 56. Find the 12th number, if the ratio betwee...
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A woman is 4 times as old as her daughter. In 8 years, the woman will be twice as old as her daughter. What are their current ages?
765 ÷ 25 × 100 ÷ 20 + 13 = x3 + 41, find 'x'
A train travels at 72 km/h and crosses a platform of length 150 meters in 30 seconds. Find the length of the train.
The efficiency of P is 20% more than the efficiency of Q, and the efficiency of R is 80% of the efficiency of Q. If P starts with 5/4 of his efficiency ...
A coin is tossed. If head occurs, a ball is drawn from a bag containing 3 red and 4 green balls. If tail occurs, a die is thrown. The probability that t...
Quantity I: The radius of a cone is twice the radius of a sphere, and the total surface area of the cone is 704 cm². The height of the cone is equal to...
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