Ratio

answered on 10-Aug-26 15:19

Can you explain Why we multiply 110/100 to 4k [Video Time Stamp: 00:22]

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The question says the price of the 1st flat increases by 10%. Suppose the original price is 4x. Now, when something increases by 10%, the new price becomes: Original price + 10% of original price =100%+10%=110% And 110% means 110/100. In calculator If you wanna increase it by adding the. we will do 40+10% If you wanna multiply the increased percentage then we will do it by x 110%

Gangula Pavana kumari

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Ratios

answered on 24-Jul-26 13:47

Can you please explain the answer to this question from icai foundation material step by step Question : If 2s : 3t is the duplicate ratio of 2s-p : 3t-p then a) p^2(p square)=6st b) p=6st c) 2p=3st d) none of these

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Hii Deepa Anand please find the attached picture

Deepa Anand

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100

Seating arrangement

answered on 09-Jul-26 13:03

Solve this please I am having trouble to solve this

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Pls find the solution of the above question

Bharathi Sivaramakrishnan

CA Foundation

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93

Sets, relations and functions

answered on 19-Jun-26 20:31

Paper 2 intersection paper 3 is 5 Paper 1 intersection paper 2 is 3 But in solution it is not considered as total [Video Time Stamp: 05:42]

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Pls make venom for people who failed and not who passed

KUDELLY Bhargavi

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third proportion

answered on 25-Apr-26 22:39

can u please explain the third proportion again with someother example i cant understand how u got 2,4,x in the video [Video Time Stamp: 10:31]

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The video has been updated. Thanks for highlighting

Shalini

CA Foundation

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Chain relative

answered on 14-Apr-26 13:28

P1/P0 That mean we can divide from Year 1 price index to base and multiply by 100.? [Video Time Stamp: 09:13]

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The Price Index Number (P₀₁) using the Simple Aggregate Method is calculated by dividing the sum of the prices in the current year (ΣP₁) by the sum of the prices in the base year (ΣP₀), and then multiplying by 100. This gives a measure of the overall change in prices from the base year to the current year

SriVidhya M S

CA Foundation

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121

Permutations and combinations

answered on 14-Apr-26 13:27

1. The results of 8 matches (win, lose or draw) are to be predicted. The number of different forecasts containing exactly 6 correct results is? 2. The number of different factors the number 75,600 has is 3. The number of 4 digit numbers formed with the digits 1, 1, 2, 2, 3, 4

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To find the number of 4-digit numbers that can be formed using the digits 1,1,2,2,3,4, we need to consider the repetitions of the digits. The digits available are two 1's, two 2's, one 3, and one 4. We will use the formula for permutations of multiset: P(n;n 1 ,n 2 ,...,n k)= n!/ (n 1 !⋅n 2 !⋯n k!) ​where n is the total number of items, and n 1 ,n 2,...,n k are the counts of each distinct item. In our case, we can choose 4 digits from the available digits, and we will consider different cases based on the repetitions of the digits. Case 1: All digits are different (1, 2, 3, 4) We can choose 4 digits from {1, 2, 3, 4}. The number of arrangements is: P(4;1,1,1,1)= 4! / (1!⋅1!⋅1!⋅1! )​=24 Case 2: One digit appears twice, and two other digits are different. Possible combinations: (1, 1, 2, 3), (1, 1, 2, 4), (1, 1, 3, 4), (2, 2, 1, 3), (2, 2, 1, 4), (2, 2, 3, 4). For each combination, the number of arrangements is: P(4;2,1,1)= 4! / ( 2!⋅1!⋅1!) =12 Total for this case: 6×12=72. Case 3: Two digits appear twice (1, 1, 2, 2) The number of arrangements is: P(4;2,2)= 4! (2!⋅2!) =6 Total Count Adding all cases together:24+72+6=102

Mrittika

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104

Permutations and combinations

answered on 20-Apr-26 11:06

1. The number of arrangements of 10 different things taken 4 at a time in which one particular thing always occurs is 2. If nCr-1 =56 , nCr =28 and nCr+1=8 then r is ?

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We use Combination for selecting the remaining 3 from 9 because the order of selection doesn't matter ,we just care about which items are chosen, not the sequence of choosing them. Once selected, we multiply by 4! to arrange all 4 items in order, since placement does matter.

Mrittika

CA Foundation

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144

Permutations and combinations

answered on 12-Apr-26 18:03

3 ladies and 3 gents can be seated at a round table so that any two and only two of the ladies sit together . The number of ways is

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2 Ladies sitting together can be selected in ³P₂ = 6 Ways now remaining 1 Lady can not sit adjacent to these ladies so out of remaining 4 seats she can sit only on two seats hence ²P₁ = 2 Ways so Ladies can sit in 6 * 2 = 12 Ways for Three Gents 3 Seats are Left so gents can sit in ³P₃ = 6 Ways Total Number of Ways = 12 * 6 = 72

Mrittika

CA Foundation

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105

Class boundaries

answered on 11-Apr-26 10:37

Mutually inclusive and exclusive

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Mutually exclusive (or exclusive) frequency distributions define classes where data values belong to only one interval, as the upper limit of one class is the lower limit of the next (e.g., 0–10, 10–20). Mutually inclusive (or inclusive) distributions include both upper/lower limits, often resulting in gaps between intervals (e.g., 0–9, 10–19), frequently requiring conversion to exclusive for analysis.

SriVidhya M S

CA Foundation

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