ental Maths Corner
MATHS
lal
31450
() 390
Tick (/the correct answer:
Rahul earns 3 250 daily. How much will he earn in a week? (1 week = 6 working days)
(ii) 31550
(iii) 31650
(iv) 1500
by The cost of 5 kg of mangoes is * 150. What is the cost of 3 kg of mangoes?
(ii) 385
(iii) 395
(iv) 100
Fill in the blanks
(a) The cost of 10 pens is 55. The cost of 1 pen is
db) The cost of 1 kg of rice is 330. The cost of 12 kg of rice is
c) The cost of 5 chairs is 1500. The cost of 2 such chairs is
Which is a better buy?
(a) 3 kg of potatoes for 45
OR
7 kg of potatoes for 101.50
(b) A dozen pens for 108
OR
a score pens for 170
Answers
Answer:
Rs 250 is divided among Ravi, Raju and
Rs 250 is divided among Ravi, Raju and Roy
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 parts
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 parts
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 parts
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=200
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50Raju gets Rs. 75
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50Raju gets Rs. 75Roy gets Rs. 125
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50Raju gets Rs. 75Roy gets Rs. 125i.e., Ravi gets 20%
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50Raju gets Rs. 75Roy gets Rs. 125i.e., Ravi gets 20%Raju gets 30%
Rs 250 is divided among Ravi, Raju and Royalso given Ravi gets 2 partsRaju gets 3 partsRoy gets 5 partsRavi : Raju : Roy = 2:3:5∴2x+3x+5x=20010x=200x=25Ravi gets Rs. 50Raju gets Rs. 75Roy gets Rs. 125i.e., Ravi gets 20%Raju gets 30%and Roy gets 50%