Std 12 Stat Complete Paper Solution 29 March 2022 Gseb Board | Statistics 29-03-22 Paper |Stat Std12

A man runs around a curved rack as shown below, in which the radius of each semicircle increases by r meters. If the man's initial speed is pir m/s and the man halves his speed after every semicircle track, the time will he take to complete running around the track if there are 8 such semicircles and the smallest has radius r is: (a). 22 min 12 sec, (b). 29 min 53 sec, (c). 31 min 37 sec, (d). 37 min 43 sec.

Prepare Bank Reconcilation Statement from the details given below and ascertain the balance as per Gami's Cash Book as on 31st March, 2019 : (i) Bank overdraft balance as per Pass Book was Rs. 12,000 whereas Cash Book showed credit balance of Rs. 30. 760 (ii) Cheqeus to creditors amounting to Rs. 20,000 in the month of March, 2019 of which cheques wrorth Rs. 3,000 were presentd to the bank up to 31st March, 2019 (iii) A cheque of Rs. 6,000 received from Raj was deposited in the Bank Account on 26th March, 2019 but no entry was passed in the Cash Book. The same was collected and credited to Gami's Account on 29th March , 2019 (vi) A cheque of Rs. 2,000 received from Baria on 20th March, 2019 was recorded in the discount column of the Cash Book and was not banked. (v) A bank draft for Rs. 5,000 favouring Rajesh was taken and recorded in Cash Book. But, bank charges of Rs. 40 were not recorded. (vi) The pass Book showed that the bank had collected Rs. 4,000 as interest on Goverment Securities. The bank had charged intested Rs. 500 and bank charges Rs. 200. These were not recorded in the Cash Book. (vii) Gami had issued chaque of Rs. 7,5000 as his LIC premium. Thc cheque was dishonourd due to technical reasons. He paid cash of LIC aagainst the dishonoured cheque. No entry was passed in the Cash Book for dishonour of cheque.

Prepare Bank Reconcilation Statement from the details given below and ascertain the balance as per Gami's Cash Book as on 31st March, 2019 : (i) Bank overdraft balance as per Pass Book was Rs. 12,000 whereas Cash Book showed credit balance of Rs. 30. 760 (ii) Cheqeus to creditors amounting to Rs. 20,000 in the month of March, 2019 of which cheques wrorth Rs. 3,000 were presentd to the bank up to 31st March, 2019 (iii) A cheque of Rs. 6,000 received from Raj was deposited in the Bank Account on 26th March, 2019 but no entry was passed in the Cash Book. The same was collected and credited to Gami's Account on 29th March , 2019 (vi) A cheque of Rs. 2,000 received from Baria on 20th March, 2019 was recorded in the discount column of the Cash Book and was not banked. (v) A bank draft for Rs. 5,000 favouring Rajesh was taken and recorded in Cash Book. But, bank charges of Rs. 40 were not recorded. (vi) The pass Book showed that the bank had collected Rs. 4,000 as interest on Goverment Securities. The bank had charged intested Rs. 500 and bank charges Rs. 200. These were not recorded in the Cash Book. (vii) Gami had issued chaque of Rs. 7,5000 as his LIC premium. Thc cheque was dishonourd due to technical reasons. He paid cash of LIC aagainst the dishonoured cheque. No entry was passed in the Cash Book for dishonour of cheque.

CBSE Board Exams 2020 - Datesheet Released For Remainig Papers | Class 10 Boards | Class 12 Boards

You have four solutions A, B, C and D. The pH of solution A is 6, B is 9, C is 12 and D is 7. (a) Identify the most acidic and most basic solutions. (b) Arrange the above four solutions in the increasing order of H^+ ion concentration. (c) State the change in colour of pH paper on dipping in solution C and D.

(i) Explain why is hydrochloric acid a strong acid and acetic acid, a weak acid ? How can it be verfied ? (ii) Explain why equeous solution of an acid conducts electricity. (iii) You have four solutions A, B,C and D. The pH of solution A is 6, B is 9, C is 12 and D is 7. (a) Identify rhe most acidic and most basic solutions. (b) Arrange the above four solutions in the increasing order of H^(+) ion concentration. (c ) State the change in colour of pH paper on dipping in solution C and d.

A rectangular piece of paper of dimensions 22 cm by 12 cm is rolled along its length to form a cylinder. The volume (in cu. cm.) of the cylinder so formed is (use pi = (22)/(7) )

A constant pressure calorimeter consists of an insulated neaker of mass 92g made up of glass with heat capacity 0.75 J K^(-1) g^(-1) . The beaker contains 100 mL of 1M HCI at 22.6^(@)C to which 100 mL of 1M NaOH at 23.4^(@)C is added. The final temperature after the reactions is complete is 29.3^(@)C , What is DeltaH per mole for this neutralization reaction? Assume that the heat capacities of all solutions are equal that of same volumes of water.

A sample (5.6g) containing iron is completely dissolved in cold dilute HCl to prepare a 250ml of solution. Titration of 25.0ml of this solution requires 12.5ml of 0.03M KMnO_4 solution to reac the end point. Number of moles of Fe^(2+) present in 250ml solution is Xxx10^(-2) (consider complete dissolution of FeCl_2 ). The amont of iron present in the sample is y% by weight Assume: KMnO_4 reacts with Fe^(2+) in the solution Use: Molear mass of iron as 56 gmol^(-1) The value of X is------.