Answer: If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6 m. -... View Article
Answer: If d varies directly as t2, then we can write dt2 = k, where k is some constant - False We can write dt2 = k, where k is some constant if... View Article
Answer: The length of a side of an equilateral triangle and its perimeter vary inversely with each other. - False In geometry, an equilateral... View Article
Answer: Length of a side of a square and its area vary directly with each other. - False A square is a two-dimensional plane figure with four... View Article
Answer: When the distance is kept fixed, speed and time vary directly with each other. - False When the distance is kept fixed, speed and time... View Article
Answer: When the speed is kept fixed, time and distance vary inversely with each other. - False When the speed is kept fixed, time and distance... View Article
Answer: Two quantities x and y are said to vary directly with each other if for some rational number k, xy = k. - Flase In direct proportion,... View Article
Answer: Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is 0.25km. Distance travelled in 75 steps = 50m... View Article
Answer: If 45 persons can complete a work in 20 days, then the time taken by 75 persons will be 288 hr hours. 45 persons complete a work in... View Article
Answer: If the area occupied by 15 postal stamps is 60 cm2, then the area occupied by 120 such postal stamps will be 480 cm2 Area occupied by 15... View Article
Answer: In case of inverse proportion, a2/a1= b2/b1 The value is said to inversely proportional when one value increases, and the other... View Article
Answer: In direct proportion, a1/b1 = a2/b2 a1/b1 = a2/b2 = k Two quantities a and b are said to be in direct proportion if they increase or... View Article
Answer: If x varies inversely as y and x = 4 when y = 6, then when x = 3 the value of y is 8. If x varies inversely as y, then x × y = k 4... View Article
Answer: If the thickness of a pile of 12 cardboard sheets is 45 mm, then the thickness of a pile of 240 sheets is 90cm. Thickness of pile of 12... View Article
Answer: An auto-rickshaw takes 3 hours to cover a distance of 36 km. If its speed is increased by 4 km/h, the time taken by it to cover the same... View Article
Answer: A car is travelling 48 km in one hour. The distance travelled by car in 12 minutes is 9.6km. Distance travelled by car in one hour = 48km... View Article
Answer: The perimeter of a circle and its diameter vary directly with each other. Circumference of the circle or perimeter of the circle is the... View Article
Answer: If two quantities p and q vary inversely with each other then product of their corresponding values remains constant. The value is... View Article
Answer: If two quantities x and y vary directly with each other, then ratio of their corresponding values remains constant. Two quantities a and... View Article
