Ambika got 99 per cent marks in Mathematics, 76 per cent marks in
Hindi, 61 per cent in English, 84 per cent in Science, and 95% in
Social Science. If each subject carries 100 marks, then find the
percentage of marks obtained by Ambika in the aggregate of all the
subjects.
A memorial trust donates ₹ 5,00,000 to a school, the interest on
which is to be used for awarding 3 scholarships to students
obtaining first three positions in the school examination every year.
If the donation earns an interest of 12 per cent per annum and the
values of the second and third scholarships are ₹ 20,000 and ₹ 15,000
respectively, find out the value of the first scholarship
Nancy obtained 426 marks out of 600 and the marks obtained by
Rohit are 560 out of 800. Whose performance is better?
A piece of cloth 5 m long shrinks 10 per cent on washing. How long
will the cloth be after washing?
A tea merchant blends two varieties of tea in the ratio of 5 : 4. The
cost of first variety is ₹ 200 per kg and that of second variety is
₹ 300 per kg. If he sells the blended tea at the rate of ₹ 275 per kg,
find out the percentage of her profit or loss.
What’s the Error? A clothing store charges ₹ 1024 for 4 T-shirts. A
student says that the unit price is ₹ 25.6 per T-shirt. What is the
error? What is the correct unit price?
What’s the Error? A student said that the ratios 3/4 and 9/16 were
proportional. What error did the student make?
What’s the Error? An analysis showed that 0.06 per cent of the
T-shirts made by one company were defective. A student says this is
6 out of every 100. What is the student’s error?
In an examination, there are three papers each of 100 marks. A
candidate obtained 53 marks in the first and 75 marks in the second
paper. How many marks must the candidate obtain in the third
paper to get an overall of 70 per cent marks?
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