Q1If 5 kg wheat costs Rs.225,then how much wheat you can buy for Rs.45

1.	Q1If 5 kg wheat costs Rs.225,then how much wheat you can buy for Rs.450?Q2First bus travels 50 km in 45 min and second bus travels 75 km in40 min. Which is faster?Q3 A rectangle field is 90 m by 70 m. A man walks around it at rate of 4 km per hour. In how much time he will cover 5 rounds?Q4If perimeter of triangle is 100 cm and two sides are 35cm and 30 cm, find the third .
Answer» Ans.1 Given, Price of 5 kg of wheat: ₹225 Price of one kg: ₹225/5 $= 45$ Amount of Wheat which can be brought with ₹450: $450 \div 45 = 10$ So, 10 kg of wheat can be brought with ₹450. Ans.2 Given, Time taken by First bus to cover 50 km: 45 MIN = 3/4 hour Time taken by Second bus to cover 75: 40 min = 2/3 hour SPEED of First Bus: $50 \div \frac{3}{4} = 66.67$ Speed of Second Bus: $75 \div \frac{2}{3} = 112.5$ Hence, The second bus is faster. Ans.3 Given, Dimensions of Rectangle FIELD: 90m × 70m Perimeter of Rectangle field: $2(l + b)$ $= 2(90 + 70)$ $= 2 \times 160$ $= 320$ Speed of man: 4KM per hour Total Distance travelled: 320×5 = 1600m= 1.6km Time taken by man to cover the rectangle field 5 times: $\frac{distance}{speed}$ $= \frac{1.6}{4}$ $= 0.4$ Hence, the time taken by the man to cover the field 5 times is 0.4 hours or 24 minutes Ans.4 Perimeter of Triangle: 100 cm Length of First side: 35 cm Length of Second Side: 30 cm $perimeter = \: sum \: of \: length \: of \: all \: three \: sides$ $100 = 35 + 30 + third \: side$ $length \: of \: third \: side = p - (35 + 30)$ $= 100 - 75$ $= 25$ Hence, the length of third side is 25cm. With Regards from Venom...