Question

Exercise
4.6
1. Two tanks contain 850 litres and 680 litres of kerosene oil respectively. Find the container of mas
capacity that can measure the kerosene of both tank exactly in litres.
2. Determine the length of longest tape that can measure the dimensions of a park whose length and b
are 185 m and 145 m respectively.
3. Three boys step off together from the same point. Their steps measure 63 cm, 70 cm and
respectively. What is the minimum distance each should cover so that all can cover the dista
complete steps ?
4. Three bells ring at intervals of 9, 15 and 18 minutes. If they ring together at 10:45 am. At what tir
they next ring together ?
5. The traffic lights at three different road crossing change after every 48 seconds, 72 seconds an
seconds respectively. If they change simultaneously at 8 am, at what time will they change simultan
again ?
Factors and Multiples​

Answer 1

Answer:

Step-by-step explanation:

Also to measure 680 liters of petrol the capacity in liters must also be divisor of 680. Therefore, the required maximum quantity of the container is the H.C.F of 850 L and 680 L. Hence the maximum quantity of the container = 170 L. Required number of times = (5+4) = 9.