81. The unit digit in the product 771 × 663 × 365 = ?
82. If sum of the two number is 80 and ratio is 3 : 5, then find numbers :
83. $$\frac{2}{3}$$ of three-fourth of a number is :
84. The greatest four digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28 :
85. A number exceeds its two fifth by 75. The number is :
86. The smallest number, which should be added to 756896, so as to obtain a multiple of 11, is :
87. If sum of two numbers be a and their product be b, then the sum of their reciprocals is :
88. If the numbers $$ \root 3 \of {9} , \root 4 \of 20 , \root 6 \of {25} $$ are arranged in ascending order, then the right arrangement is -
89. Which of the following fraction is the smallest ?
$$\frac{8}{{15}},$$ $$\frac{{14}}{{33}},$$ $$\frac{7}{{13}},$$ $$\frac{{11}}{{13}}$$
$$\frac{8}{{15}},$$ $$\frac{{14}}{{33}},$$ $$\frac{7}{{13}},$$ $$\frac{{11}}{{13}}$$
90. When 'n' is divisible by 5 the remainder is 2. What is the remainder when n2 is divided by 5 ?
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