The simple interest (in Rs., rounded off to the tens place) on βΉ12,300 from 22 May 1993 to 2 August 1993 (both days are included) at the rate of 12% per annum is:
Two points P and Q are 3 cm apart. These two points lie on the circumference of a circle having radius 1.7 cm. What is the distance (in cm) of the line segment PQ from the centre of the circle?
Two people A and B started running from the same point on a circular track of length 400 m in opposite directions with initial speed of 10 m/s and 40 m/s respectively. Whenever they meet, Aβs speed doubles and Bβs speed halves. After what time from the start will they meet for the third time?
Two years ago, the population of the city was 5,00,000. If the annual birth rate and the annual death rate are 6% and 3%, respectively, what is the present population of the city?
