#1
24th November 2014, 04:43 PM
 
 
Tips to Solve numerical problems Faster
How I become master to solve the numerical problems faster with accuracy?

#2
25th November 2014, 08:55 AM
 
 
Re: Tips to Solve numerical problems Faster
I would like to give some tips to crack numerical problem faster and with accuracy. Please give some attention to following points. Firstly, practice more mathematical questions. Learn some shortcuts Read carefully the questions. You have common formulas on your tips. Whenever you are practicing, keep watch with you so you know how much time you are taken to solve the questions and try to make the time shorter day by day. Keep attention on following topics for your practice Numbers Ratio, Proportion, Variation Averages,Mixtures and Alligation Time,Speed and Distance Time and Work Percentages Profit and Loss Simple and Compound Interest Fractions Partnership Progression Permutation and Combination Probability Geometry and Mensuration Simplification Boats and Streams Surds and Indices Number System Sets and Union Logarithm Here, I am giving the some sample question with answer for your considerations. The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is: A 1677 B 1683 C 2523 D 3363 Answer: Option B Explanation: L.C.M. of 5, 6, 7, 8 = 840. Required number is in the of the form 840k + 3 Least value of k for which (840k + 3) is divisible by 9 is k= 2. Required number = (840*2+3) = 1683. There is a certain four digit number whose fourth digit is twice the first digit. Third digit is three more than second digit. Sum of the first and fourth digits is twice the third number. What was that number? A 3036 B 4368 C 4148 D 3146 Answer: Option B Explanation: From the options, only 4368 is satisfying the conditions As per First condition; 4*2 = 8 As per second condition 3+3 = 6 As per third condition 4+8 = 2*6 If the number 42573 * is exactly divisible by 72, then the minimum value of * is: A 4 B 5 C 6 D 7 Answer: Option C Explanation: 72 = 9 x8, where 9 and 8 are coprime. The minimum value of x for which 73x for which 73x is divisible by 8 is, x = 6. Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9. Required value of * is 6. A number which when divided by 3, 4, 5, 6, 7, leaves the remainder 2, 3, 4, 5 and 6 respectively. Such largest 5 digit number is : A 99960 B 999579 C 99539 D 99959 Answer: Option D Explanation: Observe that 32.43…76 leave 1 as the common difference LCM (3, 4, 5,6, 7) = 3*4*5*7 = 420 Largest 5 digits number = 99999, Which on being divided by 420 will leave 238 and 39 as remainder Hence, the largest such number = 99999(remainder + common difference) = 9999940 =99959. Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is: A 4 B 5 C 6 D 8 Answer: Option A Explanation: N = H.C.F. of (4665  1305), (6905  4665) and (6905  1305) = H.C.F. of 3360, 2240 and 5600 = 1120. Sum of digits in N = ( 1 + 1 + 2 + 0 ) = 4 Here, I am giving the PDF for more question. practice these PDF Sample Paper For numerical problems 
#3
29th September 2015, 08:22 PM
 
 
Re: Tips to Solve numerical problems Faster
sir i can't able to solve numerical mostly in physic i am so losser in mathematics so how can i improve this problem
