1). Try to find out the topic addressed by the paragraph. This can be done by looking for the words that are repeated often in the given sentences.   2). If a particular word is repeated in more than one sentence then the sentences can be placed one by one in …

1+2+3+4+5.....99+100+99 +....5+4+3+2+1=10000 When sch type of question asked   Do a square of big number Here ( 100)^2=10000 1+2+3..........+11+10+....3+2+1=121 11 is big number ..so 11^2=121 Like that...so on..   this technique come from this formulas…

To multiply a two-digit number by 111, add the two digits and if the sum is a single digit, write this digit TWO TIMES in between the original digits of the number. Some examples: 23x111= 2553   41x111= 4551 The same idea works if the sum of the two digits is not …