Question
A seller sold a mixture of oil and water for ₹270 at a
price of ₹(9/8) per liter. The mixture originally contained 180 liters of oil. After adding ‘x’ liters of oil and (x + 20) liters of water, the ratio of oil to water in the mixture becomes 2:1. Find the value of ‘x’.Solution
According to the question,
Total quantity of mixture = 270 × (8/9) = 240 litres
Quantity of water in the mixture = 240 – 180 = 60 litres
According to the question,
{(180 + x)/(60 + x + 20)} = 2/1
Or, 180 + x = 160 + 2x
Or, x = 20
Identify the alternative which resemble the mirror-image of the given word. SECRETARY
1.
Select the correct mirror image of the given figure when the mirror is placed to the right side of the f igure at ‘MN ’.
Select the correct mirror image of the given figure when the mirror is placed along MN as shown.
Select the correct mirror image of the given figure when the mirror is placed on the right side of the figure.
If 512 C 8 = 64 and 729 C 9 = 81, then 1000 C 10 = ?
Select the correct mirror image of the given figure when the mirror is placed to the right of the figure.
Choose the alternatives which is closely resembles the mirror image of the given combination.
Select the correct mirror image of the given combination when the mirror is placed at ‘XX’ as shown.
Select the correct mirror image of the given combination when the mirror is placed at ‘AB’ as shown.
