Math
What are Prime Numbers?
Open this question (full page)
A candidate got 35% of the votes polled and he lost to his rival by 2,250 votes. How many votes were cast?
Open this question (full page)
A trader purchased two color televisions for Rs. 35,000. He sold one at 20% profit and the other at 40% profit. If the overall profit was 32%, find the difference in their cost prices.
Open this question (full page)
Rs. 6000 is lent out in two parts. One part is lent at 7% simple interest and the other at 8% simple interest. The total interest after one year is Rs. 450. Find the ratio of the amounts lent at the lower and higher rates.
Open this question (full page)
A pupil's marks were wrongly entered as 83 instead of 63. Due to this, the average marks increased by half. The number of pupils in the class is:
Open this question (full page)
A total of 3000 chocolates were distributed among 120 boys and girls such that each boy received 30 chocolates and each girl received 3 chocolates. Find the respective numbers of boys and girls.
Open this question (full page)
The average age of 15 students of a class is 15 years. The average age of 5 students is 10 years and that of another 9 students is 16 years. The age of the 15th student is:
Open this question (full page)
1 inch is equal to:
Open this question (full page)
Find the average of the series: 312, 162, 132, 142 and 122.
Open this question (full page)