Question
Which was the first metal used by
man?Solution
Copperwasfirstmetalusedbymanover10,000yearsago.
The interest earned when a sum is invested at simple interest of 20% p.a., for 3 years, is Rs. 3000. What will be the total amount received after 2 year...
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
The 5th term of an AP is 23 and the 12th term is 51. Find the 20th term.
BMC Catering Services has divided its fee structure into two components: a fixed fee and a variable fee, which depends on the number of plates ordered. ...
The interest earned when a sum is invested at simple interest of 25% p.a., for 3 years, is Rs. 1875. What will be the total amount received after 2 year...
24, 29, 62, ?, 758, 3791
...Find the mode of the following data:
A boat takes 17 hours to travel from P to Q upstream and from Q to P downstream. If the speed of the boat in still water is 8.5 km/h and the speed of th...
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
When the profit obtained by selling an item for Rs. 768 is the same as the loss suffered when the item is sold for Rs. 312. What ...
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