Maths

Question: A car takes 3 hours to travel a distance of 240 km. How long will it take to travel 400 km at the same speed?a) 4 hoursb) 5 hoursc) 7 hoursd) 6 hours Solution: Speed of the car:Speed=Distance/Time = 240⁄3 =80 km/hTime to travel 400 km:Time= Distance/Speed = 400⁄80 =5 hours ​ Our Social Media Presence […]

Question: The perimeter of an isosceles triangle is 36 cm, and the base is 12 cm. What is the length of one of the equal sides?A) 8 cmB) 10 cmC) 12 cmD) 14 cm Solution: Let the length of one of the equal sides be x.The perimeter is the sum of all sides:Perimeter=x+x+12=362x+12=36 ⇒ 2x=24

Question: If 3 liters of paint cover 45 square meters, how much area will 5 liters cover?A) 70 square metersB) 75 square metersC) 80 square metersD) 85 square meters Solution: Step 1: Find the coverage per liter of paint.Coverage per liter=45square meters/3liters = 15square meters/literStep 2: Use the unitary method to find how much area 5 liters will cover.Area covered by 5 liters=5liters×15square meters/liter=75square meters

Question: A garden has 15 rows of plants, and each row contains 18 plants. If 30 plants are removed, how many plants remain in the garden?A) 240B) 270C) 225D) 210 Solution: The total number of plants initially is:15×18=270After removing 30 plants, the remaining plants are:270−30=240So, there are 240 plants left in the garden. Our Social

Question: A train travels from City A to City B at a speed of 90 km/h and covers the distance in 4 hours. If the speed had been 100 km/h, the journey would have taken 3 hours 30 minutes. What is the distance between City A and City B?a) 330 kmb) 360 kmc) 370 kmd)

Question: A shopper buys 4 bags of apples for $3 each and 6 bags of oranges for $2.50 each. What is the total cost?A) $28B) $29C) $27D) $32 Solution: The cost of 4 bags of apples:4×3=12dollarsThe cost of 6 bags of oranges:6×2.50=15dollarsTotal cost:12+15=27dollars Our Social Media Presence –https://youtube.com/@rankmadeeasyhttps://www.facebook.com/groups/rankmadeeasyhttps://www.facebook.com/RankMadeEasyhttps://www.instagram.com/rankmadeeasy1https://twitter.com/rankmadeeasy

Question: A car travels 200 km in 4 hours and then 300 km in 6 hours. What is the average speed of the car for the entire journey?a) 60 km/hb) 65 km/hc) 70 km/hd) 75 km/h Solution: Total distance covered:Total distance=200+300=500 kmTotal time taken:Total time=4+6=10 hoursAverage speed:Average speed=500⁄10 =50 km/hHence, the average speed for the entire journey is 50 km/h. Our

Question: Two buses leave two towns 300 km apart at the same time, traveling towards each other. One bus travels at 60 km/h and the other at 40 km/h. How long will it take for the two buses to meet?a) 2 hoursb) 3 hoursc) 4 hoursd) 5 hours Solution: The relative speed of the two

Question: Two friends start running from the same point at the same time in the same direction. One friend runs at a speed of 10 km/h, while the other runs at a speed of 12 km/h. After how many hours will the faster friend be 6 km ahead of the slower friend?a) 1 hourb) 2

Question: A car covers a distance of 900 km in 10 hours. If the speed had been 150 km/h, the journey would have taken 6 hours. What is the actual speed of the car?a) 80 km/hb) 85 km/hc) 90 km/hd) 95 km/h Solution: Let the actual speed of the car be x km/h.Time taken at