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Formula used: (a - b)(a + b) = a2 - b2 => [(3√2 + 2) × (3√2 - 2)] of 13 + 15 ⇒ [(3√2)2 - (2)2] × 13 + 15 ⇒ [18 - 4] × 13 + 15 ⇒ 14 × 13 + 15 ⇒ 197 ∴ The required result = 197
Pulses of two varieties, which are costing for Rs.26/kg and Rs.78/kg as they mixed together. when the price of the mixture obtained is Rs.54/kg then wha...
In a garden, the ratio of roses to tulips is 2:3. After planting 6 additional roses and 4 additional tulips, the ratio of roses to tulips changes to 3:4...
Ratio of present ages of mother and her son is 24:8 respectively. Father’s present age is 14 years more than that of mother. If the present average ag...
The ratio of prices listed for a bag and that of a belt is 2:1. In a sale, there was a discount of 40% on the belt. At the time of checkout, Ankit notic...
Total population of city P and Q is 2240 and 2650 respectively. If the ratio of number of males to females in city is P and Q is 4:3 and 3:2 respectivel...
Two taps, A and B, can fill a cistern with a capacity of 576 liters in 36 minutes. If their filling efficiencies are in the ratio 5:3, determine how man...
In a group of 800 participants planning a community event, some opted for the role of organizers in a Science Fair, while others chose to organize a Tal...
The ratio between two numbers is 7:8. If each number is increased by 9, the ratio between then become 10:11, find the difference between numbers.
A bag contains 20 rupees note, 50 rupees note and 100 rupees note in the ratio 5:7:2. If the total amount in the bag is Rs 2,600, find the average numbe...
