Related InterviewSolutions

• The ratio of the length and the width of a school ground is 5 : 2. Find the length, if the width is 40 meters.
• Sathyan got Rs. 500 after working for 6 hours. Gopi got Rs. 400 after working for 4 \(\frac{1}{2}\) hours. Are the wages obtained proportional to the working time ?
• Find the ratio of the following (i) Smita works in office for 6 hours and Kajal works for 8 hours in her office. Find the ratio of their working hours.(ii) speed of a cycle is 15km/h and speed of the scooter is 30km/h.
• In a primary school there shall be 3 teachers to 60 students. If there are 400 students enrolled in the school, how many teachers should be there in the school in the same ratio?
• The ratio of carbon, sulphur and potassium nitrate to make gun powder is 3 : 2: 1. How much quantity of each is required to make 1.2 kg of gun powder ?
• Find the buying price of each of the following items when a sales tax of 5% is added on them. (1) a towel of ₹50 (ii) Two bars of soap at ₹35 each.
• A Super-Bazar prices an item in rupees and paise so that when 4% sales tax is added, no rounding is necessary because the result is exactly in ‘n’ rupees, where ‘n’ is a positive integer. Find the smallest value of ’n’.
• By what percent is Rs.2000 less than Rs.2400? Is it the same as the percent by which Rs.2400 is more than Rs.2000?
• With most of the Xerox machines. you can reduce or enlarge your original by entering a percentage for the copy. Reshma wanted to enlarge a 2 cm by 4 cm drawing. She set the Xerox machine for 150% and copied her drawing. What will be the dimensions of the copy of the drawing be’?
• Find the amount and the compound interest on ₹ 6500 for 2 years, compounded annually, the rate of interest being 5% per annum during the first year and 6% per annum during the second year.