Banking notes || FOR ALL BANKING EXAMS

TABLE 11 TO 20

1	11	12	13	14	15
2	22	24	26	28	30
3	33	36	39	42	45
4	44	48	52	56	60
5	55	60	65	70	75
6	66	72	78	84	90
7	77	84	91	98	105
8	88	96	104	112	120
9	99	108	117	126	135
10	110	120	130	140	150

 

1	16	17	18	19	20
2	32	34	36	38	40
3	48	51	54	57	60
4	64	68	72	76	80
5	80	85	90	95	100
6	96	102	108	114	120
7	112	119	126	133	140
8	128	136	144	152	160
9	144	153	162	171	180
10	160	170	180	190	200

Squares of Numbers
12 = 1	162 = 256
22 = 4	172 = 289
32 = 9	182 = 324
42 = 16	192 = 361
52 = 25	202 = 400
62 = 36	212 = 441
72 = 49	222 = 484
82 = 64	232 = 529
92 = 81	242 = 576
102 = 100	252 = 625
112 = 121	262 = 676
122 = 144	272 = 729
132 = 169	282 = 784
142 = 196	292 = 841
152 = 225	302 = 900

 

CUBE OF NUMBERS

13 = 1	113 = 1331
23 = 8	123 = 1728
33 = 27	133 = 2197
43 = 64	143 = 2744
53 = 125	153 = 3375
63 = 216	163 = 4096
73 = 343	173 = 4913
83 = 512	183 = 5832
93 = 729	193 = 6859
103 = 1000	203 = 8000

Sign of coefficient ‘x’ AND y in Quadratic equations

 

Coeffi. ‘x’	Coeffi. ‘y’	Sign of roots
+	+	–          –
+	–	–          +
–	+	+         +
–	–	+         –

Fractions and Percentage

Fractions	Percentage
1/2	50 %
1/3	33.33%
1/4	25%
1/5	20%
1/6	16.66%
1/7	14.28%
1/8	12.5%
1/9	11.11%
1/10	10%
1/11	9.09%
1/12	8.33%
1/13	7.69%
1/14	7.14%

Some more important fractions

Fraction	Percent
1/2	50 %
1/3	33.33 %
2/3	66.67 %
1/4	25 %
2/4	50 %
3/4	75 %
1/5	20 %
2/5	40 %
3/5	60 %
4/5	80 %
1/6	16.67 %
2/6	33.33 %
3/6	50 %
4/6	66.67 %
5/6	83.33 %
1/7	14.285714 %
2/7	28.571429 %
3/7	42.857143 %
4/7	57.142858 %
5/7	71.428571 %
6/7	85.714286 %
1/8	12.5 %
2/8	25 %
3/8	37.5 %
4/8	50 %
5/8	62.5 %
6/8	75 %
7/8	87.5 %
1/9	11.111111 %
2/9	22.222222 %
3/9	33.333333 %
4/9	44.444444 %
5/9	55.555556 %
6/9	66.666667 %
7/9	77.777778 %
8/9	88.888889 %
1/10	10 %

Golden ratio for compound interest

                                                                                    

TIME	RATIOS
For 2 years	2:1
For 3 years	3:3:1
For 4 years	4:6:4:1
For 5 years	5:10:10:5:1
For 6 years	6:15:20:15:6:1

  

• If the difference between compound and simple interest is of two years than,

     Difference = P (R)²/(100)²
Where P = principal amount, R = rate of interest

• If the difference between compound and simple interest is of three years than,

    Difference = 3 x P(R/100)² + P(R/100)³

   

Or  =  P(R/100)² (R/100 + 3)

  Here also, P = principal amount, R = rate of interest