The average age of a batch of 19 members is 24 years. If the age of the faculty be included, then the average increases by 4 months. What is the age of the faculty?
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If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)
Ram travels 4/9th of the total journey by bus, 5/18th by rail and the remaining 10 km on foot. Find the distance of total journey.
Find the greatest number which on dividing 1580 and 3800 leaves remainders 8 and 1 respectively.
Given that (a2 + b2) = 60, then find the value of (a + b)2 + (a - b)2 ?
Which one reveals, more appropriately, functioning of the heart?
Provincial Autonomy was provided by
The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is
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