Mathematics Quiz

A wheel makes 1000 revolutions covering 88 km. What is its diameter?

A sells goods 50% cheaper than B but 50% costlier than C. Who is the cheapest?

In an election, 75% vote turnout. Total voters = 22400. Votes cast = ____.

A dishonest dealer uses false weights. He marks goods at cost price but still makes a 20% profit. What is the effective weight used instead of 1 kg?

If x² − 10x + 21 = 0, roots are ____.

If radius becomes one-third but volume remains constant, length changes by ____.

The value of √8100 ____.

In billiards, A gives B 20 points in 60 and C 30 points in 60. How many points does B give C?

If a² − 7a + 12 = 0 and b² − 3b + 2 = 0, then relation between a and b ____.

If 30x = 600, then x = ____.

If a sum is invested at 10% for 3 years, simple interest is Rs. 300. Principal is ____.

If the selling price of 50 articles equals the cost price of 40 articles, find the gain or loss percent.

A question paper consists of five problems, each having three internal choices. In how many ways can a candidate attempt at least one problem?

In an election, a candidate gets 30% votes and lost by 250 votes. Total votes are ____.

A number is increased by 40% and then decreased by 20%. Net increase is ____.

If roots are imaginary, graph ____.x-axis?

If cost increases by 25% and consumption decreases by 20%, expenditure is ____.

8% of voters did not vote. If the total number of voters is such that 92% equals 25300, find the total number of voters ____.

A trader mixes 26 kg of rice at Rs. 20/kg with 30 kg at Rs. 36/kg. What is the profit percentage at Rs. 30/kg?

In a school, 40% play football and 50% play cricket. If 18% play neither, what percentage play both?