please help me with the full explanation
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please help me with the full explanation
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100%—>?
100*4/10 = 40
Step-by-step explanation:
9.
30% of ₹ 50
= 30/100 × 50
= 15
The amount which is 30% less than 50 is
50 - 15
= 35 [Answer]
10.
4% of a = 10
4/100 × a = 10
4a/100 = 10
4a = 10×100
4a = 1000
a = 1000/4
a = 250
11.
a) ₹ 25 of ₹ 250
= 25/250 × 100
= 2500/250
= 10%
b) 24 minutes of 5 hours
= 24 minutes of (5×60) minutes
= 24 minutes of 300 minutes
= 24/300 × 100
= 2400/300
= 8%
c) 16 hours of 3 days
= 16 hours of (3×24) hours
= 16 hours of 72 hours
= 16/72 × 100
= 1600/72
= 22.23%
d) 128 metres of 15 km
= 128 metres of (15×1000) metres
= 128 metres of 15000 metres
= 128/15000 × 100
= 12800/15000
= 128/150
= 0.854%
e) 150 ml of 1 litre
= 150 ml of 1000 ml
= 150/1000 × 100
= 15000/1000
= 15%
f) 50 paise of ₹ 5
= 50 paise of (5×100) paise
= 50 paise of 500 paise
= 50/500 × 100
= 5000/500
= 50/5
= 10%