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We need to find the remainder when 7777 + 77 is divided by 78. Since 77 ≡ −1mod78, then, 7777 ≡ (−1)7 ≡ −1 mod78. Hence, ans is 76
The sum of three consecutive even numbers is 28 more than the average of these three numbers. Then the smallest of these three numbers is
`2/5` ___ 15 ___ 115___ 20 ___ 4 = 581
197 ___ 32 ___ 16² ___ 45 ___ 15 = 6,557
Which of the following is the correct order?
906 ___ 6 ___ `sqrt1225` ___ 500 ___ 850 = 4,935
In a division sum, the divisor 'd' is 10 times the quotient 'q' and 5 times the remainder 'r'. If r = 46, the dividend will be
A water tap fills a tub in 'p' hours and a sink at the bottom empties it in 'q' hours. If p < q and both tap and sink are open, the tank is filled in...
If '+' means '-', '-' means '+', '×' means '÷', and '÷' means '×', then the value of 42 – 12 × 3 + 8 ÷ 2 + ...
A man invested a sum of money at compound interest. It amounted to Rs. 2420 in 2 years and to Rs. 2662 in 3 years. Find the sum.
