Ayush Agarwal Maths

Q. 1. If a : b = 7 : 9 and b : c =15 : 7, then what is a : c A) 5 : 3 B) 3 : 5 C) 7 : 21 D) 7 : 15 Q. 2. ₹ 6200 is divided into three parts proportional to 1/2 : 1/3 : 1/5 are respectively A) ₹3000, ₹2000, ₹1200 B) ₹3500, ₹1500, ₹1200 C) ₹2500, ₹2000, ₹1700 D) ₹2200,  ₹3000,  ₹1000   Q. 3. The ratio of A to B is 4 : 5 and that of B to C is 2 : 3.If A equals 800,C equals A) 1000 B) 1200 C) 1500 D) 2000 Q. 4. If A = 4/5 of B and B = 5/2 of C, then the ratio of A : C is  A) 1 : 2 B) 2 : 1 C) 2 : 3 D) 1 : 3 Q. 5. If 2A=3B=4C, then A:B:C is A) 2 : 3 : 4 B) 4 : 3 : 2 C) 6 : 4 : 3 D) 3 : 4 : 6 Q. 6. If (3x + 5)/(5x - 2) = 2/3, then the  value of x is  A) 11 B) 19 C) 23 D) 7 Q. 7. What must be added to each term of the ratio 2 : 5 so that it may equal to 5 : 6 ? A) 65 B) 78 C) 13 D) 12 Q. 8. If x/y = 3/4, the ratio of (2x +3y) and (3y - 2x) is A) 2 : 1 B) 3 : 2 C) 1 : 1 D) 3 : 1 Q. 9. Two numbers are in the ratio 4 : 5 and their L.C.M. is 180. The smaller number is  A) 9 B) 15 C) 36 D) 45 Q. 1

SSC CGL....  Q. 1. L.C.M. of 2/3, 4/9, 5/6 is  A) 8/27 B) 20/3 C) 10/3 D) 20/27 Q. 2. H.C.F. of 2/3, 4/5 and 6/7 is  A) 48/105 B) 2/105 C) 1/105 D) 24/105 Q.3. The HCF of two numbers is 16 and their LCM is 160. If one of the number is 32, then the other number is  A) 48 B) 80 C) 96 D) 112 Q. 4. The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is:  A) 46 B) 48 C) 50 D) 56 Q. 5. Four bells ring at the intervals of 5, 6, 8 and 9 seconds. All the bells ring simultaneously at same time. They will again ring simultaneously after A) 6 minutes B) 12 minutes C) 18 minutes D) 24 minutes Q. 6.The LCM of two numbers is 48. The numbers are in the ratio 2:3. The sum of the numbers is  A) 28 B) 32 C) 40 D) 64 Q. 7. The H.C.F. and L.C.M. of two numbers are 21 and 84 respectively. If the ratio of two numbers is 1:4, then the larger of the two numbers is  A) 12 B) 108 C) 48 D) 84 Q. 8. The sum of two numbers is 36 and their H.C.F. is

                      Number System Natural Numbers - Counting numbers are called natural numbers.  •  The least natural number is 1.  • There are infinitely many natural numbers.  Whole Numbers - All natural numbers together with 0 form the collection of all whole numbers.  • The least whole number is 0.  • There are infinitely many whole numbers.  • Every natural number is a whole number.  • All whole numbers are not natural numbers, as 0 is a whole number which is not a natural number.  Integers -   All natural numbers, 0 and negatives of natural numbers form the collection of all integers.  • 0 is neither negative nor positive.  • There are infinitely many integers.  • Every natural number is an integer.  • Every whole number is an integer.  SSC previous year questions (Important)  Q. 1. Which of the following fraction is the greatest? 2/3 , 5/6 , 11/15 , and 7/8 A). 7/8 B). 11/15 C).  5/6 D). 2/3 Q. 2. If a number is as much greater than 31 as it is less than 75, then

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Q.1. लुप्त संख्या ज्ञात कीजिए?             8,  10, 23,?,  297 A) 83     B) 82      C) 22        D)73 Q. 2.लुप्त संख्या ज्ञात कीजिए?               20, 28, 37, ?, 58, 70 A) 47       B) 46           C) 45             D) 48 Q. 3.लुप्त संख्या ज्ञात कीजिए?                 150, 135, 120, ?, 90, 75 A) 100       B) 110           C) 105         D) 95 Q. 4.लुप्त संख्या ज्ञात कीजिए?                 520, 510, 490, 460, ? , 360, 280 A) 420        B) 480            C) 470        D) 450 Q. 5. लुप्त संख्या ज्ञात कीजिए?                  20,  40,  63,  90,   122, ?  A) 130          B) 138            C) 150          D)160 Q. 6. लुप्त संख्या ज्ञात कीजिए?              9,  16,  25,   36,  49,  64,  ?  A) 61              B) 81               C) 68             D) 52 Q. 7. लुप्त संख्या ज्ञात कीजिए?                 8, 27, 64,  ?,  216, 343, 512 A) 225            B) 125              C) 115           D) 215 Q. 8. लुप्त संख्या ज्ञात कीजिए?              4, 7, 12, 19, 28, ?  A) 39            B) 42           C) 71     

                          Number Series Reasoning previous year questions  Q.1. Find the missing number?  10, 15, 20, 25, ?, 35, 40 A) 33         B) 31       C) 30          D)38 Q. 2. Find the missing number?  20, 28, 37, ?, 58, 70 A) 47      B) 46          C) 45            D) 48 Q. 3. Find the missing number?  150, 135, 120, ?, 90, 75 A) 100       B) 110          C) 105        D) 95 Q. 4.Find the missing number?  520, 510, 490, 460, ? , 360, 280 A) 420       B) 480           C) 470       D) 450 Q. 5. Find the missing number?  20, 40, 63, 90, 122, ?  A) 130         B) 138           C) 150         D)160 Q. 6. Find the missing number?  9, 16, 25, 36, 49, 64, ?  A) 61             B) 81              C) 68            D) 52 Q. 7. Find the missing number?  8, 27, 64,  ?,  216, 343, 512 A) 225           B) 125             C) 115          D) 215 Q. 8. Find the missing number?  4, 7, 12, 19, 28, ?  A) 39           B) 42          C) 71         D) 36 Q. 9.Find the missing n